As charles darwin observed, natural selection operates whenever individuals of one genetic composition are better at reproducing than that of others.

(a) that of others
(b) the other
(c) another
(d) those of another
(e) that of the next

Option D is correct.

Explanation:

This is a parallelism problem. Parallelism is the state of being parallel or of corresponding in some way.

Now, let us take option A which is ''that of others''. Option A is wrong because it is 'singular' whereas we are considering 'plural'.

Taking option B which is ''the other''. Option B is wrong because "other" refers to another genetic composition. The words ''each other" refers to interaction between exactly two things or people.

Taking option C which is "another'' is the same as Option B. The word "another" is used for another of an indefinite number of things.

Taking option E: option E is ''that of the next"; it is also singular.

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

carefully examine the map above. based on your knowledge of colonialism in africa, the area attributed to belgium on this map is most likely the democratic republic of the congo.