In paragraph 9, Dr. Jeff Kalina affirms that Petroleum h...

A

it is neurologically harmful for the family of workers in oil rigs.

B

the health risks associated with oil prospection are completely unpredictable.

C

the damages it causes on the environment are intrinsic to the way oil is being explored.

D

direct exposure to the chemicals it contains can cause different kinds of health disorders.

E

all of the risks associated with the oil production are known but are not made public.