Why was the location of cuba so significant during the cuban missile crisis?

a.
cuba is located in the red sea and mid-range communist missiles could reach louisiana from there.

b.
cuba is located 90 miles from the coast of florida and mid-range communist missiles could reach u. s. cities from there.

c.
cuba is located in the pacific ocean and mid-range communist missiles could hit targets in california from there.

d.
cuba is located between the pacific ocean and the gulf of mexico and mid-range communist missiles could reach california from there.