Answer:
a.(bees OR flowers) AND dickinson
Explanation:
We defenitevily want Dickinson in our search as it is the writer we are interest on. Thus the statment should be and AND as an OR may leave it off the equation. and the system will look for bees or flowers from pretty much any writer. Dickinson is an exclusive factor.
Then, from the topoc of his poetry we look for bees or flowers at an equal interest. With findings of just one of these two concepts we are satisfied thereofre and OR statement is the way to go.