Ineed to match the nitrogenous base with its complementary base pair from one strand:

Explanation:

Well A-T have a complementary shape

And C-G have a complementary shape

So replace all Ts for A, and all As for Ts

Replace all Cs for Gs, and all Gs for Cs

You get"

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

measuring things 1 litre of water