Acell is unable to synthesize proteins. what most likely caused this?

a. cell membrane has broken down
b. the cell is undergoing mitotic cell division
c. the ribosomes have been destroyed
d. the centrioles are unable to form spindle fibers

and explain, really need

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.