How do the field workers know that the lady of shalott is in the tower?

In figure 4 of the telephone components what do the labels lettered a to e

In poem daffodils-how do we know that the yellow daffodils has a long lasting effect on the speaker.

Some one drawing water and my theater placed my hand under the spout. as the cool stream gushed over one hand she spelled into the other the word water , first slowly , then rapidly . i stood still ,my whole attention fixed upon the motions of her fingers . suddenly i felt misty consciousness as of soothing forgotten --a thrill of returning thought and somehow the mystery of language was revealed to me this passage from the stoyof my life is an wxample of which element of plotclimax action