1. The Aryans:

A. were an Indo European people who spoke the German language.
B. crushed Mohenjo Daro when the Harappan Civilization was at its peak.
C. never controlled any of the Deccan Plateau.
D. were led by tribal chieftains who were called rajas.

is it A

2. Chandragupta Maurya:
A. may have been a member of the army of Alexander the Great.
B. feared assassination and had a secret police.
C. was the last major Mauryan ruler.
D. worshiped the god, Mithras.

is it B

Both your answers are right.

To answer the question about the Aryans, we can analyze each option and determine the correct answer:

A. The statement that the Aryans were an Indo-European people who spoke the German language is incorrect. The Aryans were Indo-European people, but they did not speak German. They spoke ancient Indo-Aryan languages, which later evolved into Sanskrit.

B. The statement that the Aryans crushed Mohenjo Daro when the Harappan Civilization was at its peak is incorrect. The Aryans did invade the Indus Valley civilization, which included cities like Mohenjo Daro, but the timing of the invasion does not coincide with the peak of Harappan civilization.

C. The statement that the Aryans never controlled any of the Deccan Plateau is incorrect. After invading the Indus Valley, the Aryans continued to migrate and settle in various regions of the Indian subcontinent, including the Deccan Plateau.

D. The statement that the Aryans were led by tribal chieftains called rajas is correct. The term "raja" referred to the tribal chiefs or kings who led the Aryan society.

Therefore, the correct answer is D. The Aryans were led by tribal chieftains called rajas.

Now, let's move on to the question about Chandragupta Maurya:

A. The statement that Chandragupta Maurya may have been a member of the army of Alexander the Great is incorrect. Chandragupta Maurya founded the Mauryan Empire in India several years after Alexander the Great's campaign in the region.

B. The statement that Chandragupta Maurya feared assassination and had a secret police is correct. Chandragupta Maurya was known for being paranoid about assassinations and maintained a secret police force to ensure his safety.

C. The statement that Chandragupta Maurya was the last major Mauryan ruler is incorrect. Chandragupta Maurya was the first major ruler of the Mauryan Empire, not the last.

D. The statement that Chandragupta Maurya worshiped the god Mithras is incorrect. Chandragupta Maurya, like many other rulers of his time, adhered to various Hindu beliefs and practices.

Therefore, the correct answer is B. Chandragupta Maurya feared assassination and had a secret police.

Please note that these explanations are based on historical knowledge, and it's always good to refer to reliable sources for further confirmation.