Topic: Root, Prefix, Suffix, Affix, Infix, Morpheme & Derivatives,

Best Answer Explained in Below-:

The prefix "re-" is a common affix in the English language that indicates repetition or a return to a previous state. In the word "re-emergence," the prefix specifically signifies that something is occurring once more or is happening again.

To break it down:

- The root word "emergence" refers to the act of coming into view or becoming visible.
- When we add the prefix "re-," it modifies the meaning to suggest that the emergence is not a first-time occurrence, but rather a recurrence or resurgence of something that has previously emerged.

For instance, if a species that had previously faced extinction is found to be thriving again, we refer to this as its "re-emergence." This illustrates how the use of "re-" effectively communicates that an event or state has happened before and is happening again.

Therefore, among the options provided, "again" (C) accurately captures the essence of the prefix "re-," while the other options do not relate to its meaning in this context.