Answer:
C). "To him who in the love of Nature holds. "
Step-by-step explanation:
Iambic pentameter is defined as the poetic meter that consists of a line with five metrical feet in each of which the iamb(metrical foot in verse consisting of an unstressed syllable followed by a stressed syllable) is dominant. Among the given options, the third option i.e. 'To him who in the love of Nature holds' employs this pattern of five pairs of unstressed syllable followed by a stressed one. Hence, option C is the correct answer.