Question

the way chromosomes control cell processes is by coding for the production of all a cells proteins. it is the proteins themselves that do the hands on work of controlling cellular processes. chromosomes can be thought of as management.
chromosomes control cell processes. they do this by
a providing energy for the cell to use.
b destroying foreign organisms that invade the cell
c coding for the production of all a cells proteins
d providing a site for the synthesis of the cells proteins

Explanation:

The text clearly states that chromosomes control cell processes by coding for the production of all a cell's proteins. This is the key - concept to answer the question.

Answer:

C. coding for the production of all a cell's proteins