The difference between generative writing and drafting is that a generative writing brings up ideas, drafting develops one idea. It is a simple way to differentiate between generative writing and drafting. The correct option among all the options that are given in the question is the first option or option "a".
What is A B C and D? You have to tell us what the options are so we can answer.
D. development of transgenic organisms
Al of these will be the consequences except C, increase in polar ice. The rise in temperature is already causing the polar ice to melt down. The further increase in temperature will make the situation of the polar ice worse. the rise in vegetation in Tundra and Tyga regions could be seen because they are very cold areas and temperature increase may help vegetations to survive.