Read the excerpt from silent spring. in the gutters under the eaves and between the shingles of the roofs, a white granular powder still showed a few patches; some weeks before it had fallen like snow upon the roofs and the lawns, the fields and streams. which best explains how the phrase “white granular powder” supports the author’s purpose of calling attention to the environment?

If these are the choices:
A.The powder is an unnatural substance.
B.The powder has a texture like sugar.
C.The powder looks like freshly fallen snow.
D.The powder is used in house construction.

A.The powder is an unnatural substance. best explains how the phrase “white granular powder” supports the author’s purpose of calling attention to the environment. 

Because the powder is an unnatural substance, it's presence is a major cause of concern because its composition and effects is still unknown and it is seen everywhere. 

The career that i have* decided to present this year is photography. photographers use both aritficial and natural lighting*use a transition sentence when going into the 2nd paragraphso.. photographer? *in order for me to be a photographer* scratch "accomplish this ranking" then say, i must first.. and continue on the sentence instead of different use various*