Definitely i would expect them to concern themselves with your problems when they are so beset with their own. Beset means having a lot of trouble with something, or having to deal with a lot of something causes problems. For example in a sentence; With the amount of traffic nowadays, even a trip across town is beset with dangers.
Answer:
The lichen is a decomposer that digests rocks and forms soil.
Complementary strand of mRNA would be: AAUCGGAAC
In short, Your Answer would be Option C
Hope this helps!
