Answer:
Chimamanda Ngozi Adichie Commencement Speech to the American University... From my poetry and years before when I began writing stories as a kid in little notebooks. ... And spellings, which means the text messages don't count. ... When you've been immersed in reading here at the AU for the last few years.
I believe it is A. Because it’s talking about how the salt is a danger and letter A talks about the danger of it.
The third omniscent point of view is when the narrator knows exactly what the character feels, thinks and acts. Taking this in viewpoint and looking over your question I would say option d is the answer.