Correct Answer: (b) lambic Pentameter
Solution:Iambic pentameter is used in a Blank verse. Blank verse is an un-rhyming verse in iambic pentameter which has consistent meter with 10 syllables in each line; where, unstressed syllables are followed by stressed ones. It is also known as "un-rhymed iambic pentameter." Hence, the correct answerver is option (b).