Which type of sentence is this? The award-winning writer Maya Angelou composed "On the Pulse of the Morning" at the request of President Bill Clinton and recited the poem at his inauguration in 1993.

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. '