Final answer:
The correct answer is c) Run, which is the past participle form of the verb 'run.' Past participles are commonly used to form perfect tenses or as adjectives in English grammar.
Step-by-step explanation:
The question you've asked pertains to identifying the past participle form of a verb. In English grammar, past participles are forms of verbs generally used to create perfect tenses or as adjectives. They are one of the principal parts of a verb.
Let's evaluate the options you provided:
Running – This is the present participle, not past.
Ran – This is the simple past tense, not the participle.
Run – This is indeed the past participle of the verb 'run'.
Had run – Although this includes the past participle 'run,' it is part of the past perfect tense when combined with 'had'.
Therefore, the correct answer is c) Run, which is the past participle of the verb 'run'.