C. Yours very truly, Hope this helps.
The answer is A. There is a metaphor and a simile. I hope that this helps. =)
The invention of the <em>transistor</em> in the 1950s allowed engineers to build smaller, faster, and more reliable computers.
Answer = Transistor
Decomposers break down waste in their environment for the consumers so that their environment is not littered with the waste of other animals/bacteria/plants. Also when the waste is broken down, it creates a type of fertilizer for the plants in their environment.