The correct answer is C. Blank verse. This is because even though it is written using the iambic pentameter (both catalectic and acatalectic), there is no rhyme at all, meaning that it is blank verse.
Blank verse is a type of poetry (often written in iambic pentameter) that has a regular metric, but unrhymed lines. This is the case in this excerpt of <em>Paradise Lost</em>, as the lines do not follow any rhyming pattern. Blank verse is the most common poetic form in English, and it has been used in English poetry since the 16th century.
