In the following question, a part of the sentence has been highlighted. Identify the option that can both grammatically and contextually replace the highlighted part but lends an opposite meaning to the sentence. Most of the people are small landholders who is struggling to send their children to the government school.     

The highlighted part of the sentence is grammatically incorrect as we cannot use the singular verb 'is' to justify the plural noun 'landholders'. Options (b) and (d) are eliminated as they are not opposite to the highlighted phrase. Option (c) is eliminated as we cannot use the relative pronoun 'whom' which is used to refer to the object of the sentence. Here, the noun 'landholders' is not the object. Option (e) is eliminated as we cannot use the singular verb 'is' with the plural noun. Among the given options, only the phrase in option (a) lends an opposite meaning to the highlighted phrase and is grammatically correct as well. Hence, option (a) is the correct answer.