The correct answer is: A. Were / were / in 1995.
The verb “to be” is conjugated in the plural form (“were”) because the subject of the sentence is “they.” The preposition “in” is used to indicate the location of something. The year “1995” is the specific location in which they were born.
The other options are incorrect because they do not agree with the subject of the sentence or the preposition used. Option B is incorrect because the verb “to be” is conjugated in the singular form (“was”) instead of the plural form (“were”). Option C is incorrect because the preposition “in” is used to indicate the location of something, but the year “1995” is not a location. Option D is incorrect because the verb “to be” is conjugated in the singular form (“was”) instead of the plural form (“were”), and the preposition “in” is used to indicate the location of something, but the year “1995” is not a location.