This question examines the understanding of the word 'notorious'. The correct answer is B, as 'notorious' means famous or well known, typically for some bad quality or deed, which is synonymous with 'infamous'. Option A is incorrect because 'famous' does not carry the negative connotation that 'notorious' does. Option C is incorrect because 'popular' does not necessarily imply a negative reason for being well known. Option D is the opposite of what 'notorious' means.