detailed solution

Correct option is A

"Can" is a modal verb used in the English language. It denotes the ability to do something. It can also be used to ask permission. For example, "Can I ride the car?" is a question asking permission to ride a car. The base form of the verb is used with "can", like, e.g., ride, read, play, sing, hear, mould, and so on. In the given options, only option A follows this rule. Option B is in the present continuous tense. Hence, it can be eliminated. Option C uses the past form of the verb. Option D is also in the present continuous tense. Hence, option C and option D can be eliminated.