Use the drop-down menu to complete the sentence.(1 point)

Many of the achievements of the ancient Indus Valley civilization was due to their advanced knowledge of __________.

A farming
B mathematics
C weather patterns
D geography

B mathematics

The correct answer is B mathematics.

To complete the sentence, we need to select the option from the drop-down menu that correctly fills in the blank. From the given options, it appears that the correct answer is B. mathematics.

The ancient Indus Valley civilization had advanced knowledge of mathematics, which contributed to their achievements. This information could be obtained by either studying historical texts and archaeological evidence or by researching reliable sources such as books, articles, or credible websites focused on the history of the Indus Valley civilization.