Hello Everyone! So I"ve got a homework from Physics and I solved 2 out of five questions, but these 3 are making me problem. So im asking for a bit of help!

I will be very happy if anyone can do this for me, also with explanation.

Also attaching Microsoft Word file with questions.

Thanks in advance!
-Mathew

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve