The given analogy question requires us to identify a relationship between words. Here, "Contemporary" is related to "Historic," and we need to find a word that relates to "Ancient" in a similar manner.

Let's break down the relationship:

1. Understanding "Contemporary" and "Historic":
   • "Contemporary" refers to something that is modern or current.
   • "Historic" refers to something belonging to the past or significant in history.
2. Analyzing the Analogy:
   • The relationship between "Contemporary" and "Historic" is one of time periods, where "Contemporary" is present or modern while "Historic" refers to the past.
3. Finding the Word for "Ancient":
   • "Ancient" denotes something that is very old or from a long time ago.
   • Given the pattern of moving from present to past in the first part of the analogy, we seek a word that represents the present or recent era concerning "Ancient."
   • The word "Modern" is the appropriate choice as it represents the present or recent times, contrasting with the old or historical nature of "Ancient."

Therefore, the word that completes the analogy is "Modern". This correctly parallels the temporal contrast seen in the first pair, "Contemporary : Historic."