Which description best summarizes the features of a Spenserian sonnet?

A) three quatrains and a heroic couplet, with the rhyme scheme abab bcbc cdcd ee

B) an octave and a sestet, written in iambic pentameter, with no definite rhyme scheme

C) an octave and a sestet, written in iambic tetrameter, with the rhyme scheme abbacddc xyxyxy

D) three quatrains and a heroic couplet, with no definite rhyme scheme or meter