Can someone please help me before I have a heart attack? A body of fresh water is shown below.

Which point in this body of water is most likely to be in the photic zone?
A. point b
B. point c
C. point a
D. point d

and please don’t answer if you don’t know it

Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.