In order to select the correct form of the verb to complete the sentence, let's understand the subject-verb agreement. Subject and verb should agree with each other, i.e., if the subject is singular, the verb should also be in its singular form; and if the subject is plural, the verb should also be in its plural form.
Option A - The word 'often' in this sentence explains us that it's a general statement. We use simple present tense to describe a person's routine or habit. Hence, we can't use 'going' as the verb is in the participle form. Thus option A is incorrect.
Option C - 'To' is used as an infinitive, adverb and preposition. 'To' is accompanied by a verb to make an infinitive verb. Here, we need a main verb and not an infinitive marker. Hence, option C is incorrect.
Option D - The word 'often' in this sentence explains us that it's a general statement. We use simple present tense to describe a person's routine or habit. 'Go' is used to express an action in simple present tense. However, the subject singular and hence we need a verb in its singular form as well. In present tense, the verb in singular form has 's/es' to match the singular subject; and the verb in the plural form do not have 's/es' to match the plural subject. Hence, 'go' is an incorrect word to use here. Thus option D is incorrect.
Option B - As explained above, we need the verb in its singular form and in present tense. Hence, 'goes' can be used here- 'He often goes for a ride on the weekend.' Thus option B is the correct answer.