PLEASE HELP ASAP
Why did the public's opinion change about the use of DDT?
a. Several plants and animals were added to the endangered species list.
b. A biologist published a book that opened the public's eyes to DDT's harmful effects.
c. The public started to see the effects of DDT—their pets and children were getting sick.
d. A sitting president convinced the public that DDT was a dangerous carcinogen.