The word IS used when the subject is in the singular. In the given sentence, NAME is the subject of the sentence. Hence IS is the correct answer.
The remaining options are incorrect because:
Option A- ARE is used when the subject is in the plural.
Option C- AM is used only with the word I.
Option D- NOT is a word that denotes negation which has no relevance in the given sentence.
Thus, option B is the correct answer.