৪০. The adjective form of 'contribution' is —

Correct Answer: (D) contributed Note: Strictly speaking, none of the given options perfectly represent the standard adjective form. However, the answer key marks (D) 'contributed' as correct — this is the past participle used as an adjective. Explanation of the answer: — 'contributed' is the past participle of 'contribute' — Past participles can function as adjectives: e.g., "contributed funds", "a contributed article" — In this context, 'contributed' is the most grammatically defensible adjective form among the options Actual word family of 'contribution': — Noun: contribution — Verb: contribute — Adjective (standard): contributory, contributing, contributed — Adverb: (no standard single-word adverb) Why other options are wrong: ✗ contributative: not a standard English word ✗ contribute: this is the verb form, not adjective ✗ contributional: not a recognized standard adjective in English Important adjective forms to remember: — education → educational — emotion → emotional — nation → national — contribution → contributory (most standard) Source: Oxford Advanced Learner's Dictionary; Merriam-Webster; Past NTRCA Question Bank.