Select the most appropriate option that can substitute the highlighted segment in the given sentence.
This cat and mouse game are famous with all children in the future.

Correct option is C

The correct substitution of the highlighted words is (c) will be.
Explanation:
The sentence refers to something in the future, as suggested by the phrase "in the future." Therefore, we need simple future tense here.
Correct sentence: This cat and mouse game will be famous with all children in the future.
Grammatical Rule:
Use “will be” to express predictions or events expected in the future.
Example: She will be a great artist someday.
Why Others Are Incorrect:
· (a) would have been – conditional perfect (not needed here)
· (b) is – present tense (doesn’t match “in the future”)
· (d) was – past tense (wrong time frame)