Concept:
Prepositions are used to show relationships between nouns/pronouns and other words in a sentence. The verb "appeal" is a dependent verb that takes different prepositions depending strictly on the object that follows it. The two most common configurations for the verb "appeal" are:
1. Appeal to [Someone]: Used when indicating the authority, person, or body being requested or addressed. (e.g., *He appealed to the judge.*)
2. Appeal for [Something]: Used when indicating the desired object, action, assistance, or asset being sought after. (e.g., *He appealed for mercy.*)
Let us evaluate the options provided:
• Option (A) with: "Appealed with" is grammatically incorrect when expressing a request for a target object or outcome like help.
• Option (B) for: Since "help" is the thing being requested by the old man, the preposition "for" must be used here to express the ultimate purpose or objective of his urgent request.
• Option (C) on: "Appealed on" does not fit grammatically in this context unless it is part of an entirely different construction like "appealed on behalf of someone."
• Option (D) to: While "appeal to" is a valid English structure, it requires a person or an organization as the recipient of the appeal (e.g., *The old man appealed to the crowd*). Since "help" is an abstract noun denoting assistance rather than an entity being addressed, "to" is incorrect.
Thus, the correct choice is "for", making the complete sentence: "The old man appealed for help."