The correct answer is A. visited.
The verb “visit” is used to describe the action of going to a place for a short time, usually to see the sights or to meet someone. In this case, the speaker is saying that they went to Negombo, Beruwela, and Nilaveli, which are all towns in Sri Lanka. The use of the past tense indicates that the speaker visited these towns in the past.
The other options are incorrect because they do not accurately describe the speaker’s actions. Option B, “was visited,” is in the passive voice and indicates that the speaker was the recipient of a visit, not the one who did the visiting. Option C, “have visited,” is in the present perfect tense and indicates that the speaker has visited Negombo, Beruwela, and Nilaveli at some point in the past, but not necessarily recently. Option D, “none of these,” is incorrect because it does not include any of the options that are correct.