Deep structure refers to the _____ of a sentence.

In their study of "temperamental individuality," NYLS researchers found that infants can be characterized as easy, difficult, hard to classify, or ______

Fill in the blank with correct word

Normal cells in the body have __________

a) 23 chromosomes. b) two sets of 25 chromosomes. c) 52 chromosomes. d) 46 chromosomes.