An Elizabethan sonnet (or Shakespearean sonnet) differs from an Italian sonnet in the way that it has three quatrains (four lines in a group) and a closing couplet (two rhymed lines) thanks to its rhyme scheme of ABAB CDCD EFEF GG, whereas the rhyme schene of the Italian one is ABBAABBA CDECDE, which creates a octave in the first eight lines and a sestet in the six lines that follow. Therefore, the correct difference between these two sonnets among the options is "It has three quatrains and a final couplet."