the final couplet in an english sonnet functions primarily as
A. comedic relief
B. the moral of dilemma outlined in the preceding stanza
C. the surprising ending
D. the resolution of the problem presented in the quatrains
The final couplet in an English sonnet functions primarily as D) the resolution of the problem presented in the quatrains.
A sonnet consists of 14 lines, there are three quatrains (=12 lines) and one couplet, which usually summarizes the poem and offers solutions to the problems.