Which has been in force since 1975. What is the grammatical name and function?

i would say that these are the two thesis statements best for a literary analysis essay on recurring themes in shakespeare's romeo and juliet:

1.  in romeo and juliet, shakespeare demonstrates that love comes in a variety of forms, be it romantic, familial, or between friends.

2.  shakespeare explores the struggle for identity through the character of juliet in his play romeo and juliet.

the other theses aren't reoccurring in this play. 

explanation:

  . 2 is the                                                                                                                                                      

the answers are;

d. it reveals hamlet’s hesitation to act.

a.it reveals hamletâs anger with himself.