"An Akbar is not born in every age."

This sentence uses the indefinite article "an" before the proper noun "Akbar" to indicate that it refers to any potential person named Akbar. The phrase "is not born in every age" suggests that Akbar's birth is not a common occurrence across all time periods.

The other options have some grammatical issues or redundancies:

"A Akbar is not born in every age." - This sentence is incorrect because the indefinite article "a" should be followed by a consonant sound, and since "Akbar" begins with a vowel sound, it should be preceded by the indefinite article "an" instead.

"The Akbar is not born in every age." - This sentence implies that there is a specific Akbar being referred to, but it lacks context. If there is no previous mention or specific Akbar being discussed, using "the" is not appropriate.

"An Akbar is not born in an every age." - This sentence is grammatically incorrect. The word "an" is correct before "Akbar," but the use of "an every age" is redundant and incorrect. Instead, it would be grammatically correct to say "in every age."