In option (b), the determiner 'few' which is used to quantify countable nouns is incorrectly used to quantify the uncountable noun 'money'. Instead, the determiner 'some' is to be used.
In option (c), the adjective 'new' is incorrectly used to qualify the verb 'launched'. Instead, the adverb form 'newly' is to be used to qualify the verb 'launched'.
In option (d), the singular noun 'every student' is followed by the plural verb 'have' which leads to an error in subject-verb agreement. Instead, the singular form of the verb 'has' is to be used.
Option (a), is a sentence that is grammatically and contextually correct without any errors.
Hence, the correct answer is option (a).
Note:
Determiner: A modifying word that determines the kind of reference a noun or noun group has, for example, 'a', 'the', 'every', 'much', 'many', etc.
Subject-Verb Agreement: Matching up singular or plural subjects with singular or plural forms of a verb is part of the process called agreement. This can be understood better by the examples given: - "She likes cooking." [singular subject and verb] -- "They like to cook vegetables." [plural subject and verb]
Qualifiers: A word or phrase that limits the meaning of another word or phrase or makes it less general. 'Adverbs' and 'adjectives' are qualifiers.
Countable and uncountable nouns: 1. Countable nouns are the class of nouns that can be counted, for example, table one table, two tables, three tables, etc. 2. Uncountable nouns are the nouns that cannot be counted or usually are not counted, for example, light, water, milk, information, furniture, etc. They do not generally have a plural form and can't be preceded by a or an. Many abstract nouns are typically uncountable. Some uncountable nouns can be used in the plural as well, depending on the meaning or context of the word.