Yes, you are correct. Though, they all make sense and mean the same thing, but B is the best choice.
Answer:
To protect and organize
Explanation:
A cell membranes function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.
-ilovejiminssi <3
Contractions Phrasal Verbs Slang/Colloquialism First Person Pronouns