Somebody help me please

What is the predicate noun in the following sentence? my favorite flower is the rose.

Repartió the last letter or sound in a word is a technique known as

Which sentence is punctuated correctly? a) the moon which often shines too brightly in my window is full tonight. b) my new textbook which costs over thirty dollars is the best one i've ever read. c) mr. smith, who is a well-respected lawyer, has just retired from active practice. d) the play by velma winterbaker, that was published last year, ended up winning the pulitzer prize. '