This is my question:

Which statement is true about the transitions because and as a result in the following sentences?

Amir reached his savings goal because he worked hard at his new job all summer. As a result, he was able to buy the new skates that he wanted.
(1 point)

Both because and as a result signal an effect.
Both, because, and, as a result, signal an effect.
Both because and as a result signal a cause.
Both, because, and, as a result, signal a cause.
Because signals a cause and as a result signals an effect.
Because, signals a cause and, as a result, signals an effect.
Because signals an effect and as a result signals a cause.

sorry if its hard to understand i just need help for this last question T^T

The answer to your question is: Because signals a cause and as a result signals an effect.

The word "because" introduces a cause that leads to an effect, and the phrase "as a result" indicates the effect that follows from the cause mentioned before. Therefore, both transitions signal different purposes in the sentence.

thank u <3