These crops generally are herbicide and pest tolerant, but other GE crops in the pipeline focus on other traits.
So based on information i think the answer is D.
Answer;
Increase in cancers related to sun exposure
The implication that the destruction of the stratospheric ozone layer have for earth is the increase in cancers related to the exposure to the sun.
Explanation;
The stratospheric ozone is important as it blocks the harmful UV radiations of the sun. This ozone is present as the ozone layer in the stratosphere.
Destruction of the stratosphere means the destruction of ozone layer will cause the UV rays to enter the earth.
These radiations from the sun are fatal for life on earth since they may cause cancer which may lead to deaths.
the air and all the gasses