Read each sentence carefully to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sentence marked (a), (b), (c) or (d). Choose the option corresponding to that part. If the sentence is correct as it is, choose “No error (e)” as your answer. Ignore punctuation errors, if any. The survey indicates that a majority of the respondents (a) believes that digital payments (b) are more convenient and secure (c) than traditional cash transactions (d). No error (e)

This question tests subject–verb agreement, particularly with collective expressions such as “a majority of.” When the phrase refers to individual members of a group (people counted separately), the verb must be plural. In this sentence, “respondents” clearly refers to multiple individuals, so the verb must agree in the plural form. However, “believes” is singular and incorrectly matches “majority” instead of the plural noun “respondents.” Therefore, the correct form should be “believe.” Since the error occurs in part (b), that option is correct.