Which sentence is in the passive voice?
a. does emily also read a lot of science fiction books?
b. this building has been painted by student volunteers.
c. the hot dogs roasted over the campfire.
d. speak to the conductor about the train tickets.

How can behavioral science be applied in improving public health? a.by tracking a disease to determine its sourceb.by creating promotions that improve health habitscboth by tracking a disease to determine its source and by creating promotions that improve health habitsd.neither by tracking a disease to determine its source or by creating promotions that improve health habits

Iam trying to  get  a call through to san francisco. (send, put)

Plzz , i need to get an a on my i will give branliest! senator warren states that the effects of pay discrimination are long-lasting. is this a valid argument supported by accurate evidence?