Question

What's the most important point in the following sentence?

My sister Emily, the tallest girl in her class, has many friends.

A. Emily is my sister.
B. Emily is the tallest girl in her class.
C. My sister's name is Emily.
D. Emily has many friends.

Answer 1

The answer is D because the other parts are all supporting information.

Hope that helped you!

Answer 2

The correct answer is;

Emily has many friends.

Step-by-step explanation:
The words after the two first commas are just words to express her sister and, even if you perceive these words out of the sentence, the structure of the sentence is still present. The other parts are all supporting information. They are not giving the main information and are not describing the central theme.