A: Homeostasis
Reason: cell membrane has nothing to do with question and C and D are terms for sugars
Your answer would be
<span> The eyes have atrophied (lack of use).
Hope I helped!!</span>
Because human DNA is so very long (with up to 80 million base pairs in a chromosome) it unzips at multiple places along its length so that the replication process is going on simultaneously and more accurately.