The correct answer is C. Iambic pentameter contains 10 syllables per line, while prose contains no limit on syllables per line.
Step-by-step explanation
Iambic pentameter is a line of a verse composed of five metrical feet (groups of syllables), this means each verse is composed of 10 syllables, usually by words with an unstressed syllable followed by a stressed one (stress refers to the where the emphasis is in a word), Iambic pentameter is usually use in English poetry. On the other hand, prose refers to the ordinary way of writing, which means writing in sentences and paragraphs without caring about rhyme (the sound between words) or metric (number of syllables). This means, while there is a limit of 10 syllables per line in the iambic pentameter, in prose the number of syllables per lime is not limited or ruled.