If two steel cylindrical rods 'a' and 'b' (same material) have the same length 'l' and the diameter 'da = 2db', under the same normal stress:
a) Rod 'a' experiences greater strain than rod 'b'.
b) Rod 'b' experiences greater strain than rod 'a'.
c) Both rods experience equal strain.
d) Strain cannot be determined with the given information.