Question

Which sentence uses punctuation correctly?

A.
My sister since she is determined to become an astronaut is taking extra classes in math and physics.

B.
My sister, since she is determined to become an astronaut, is taking extra classes in math and physics.

C.
Since she is determined to become an astronaut my sister is taking extra classes in math and physics.

D.
Since she is determined to become an astronaut my sister is taking extra classes, in math and physics.

Answer 1

It is either A or B, I am not quite sure. I know for sure it isn't C

Answer 2

i think its C

Answer 3

oops i mean B

Answer 4

thank you for your help :)