Period of Pendulum

If the pendulum is allowed to swing through a small angle, the period T is given by the formula:
                  T=2π √(L/g)
Where L is the length of the pendulum.
Let there are two pendulums.
The length of the first pendulum is four times greater than the length of the second pendulum (L₁ = 4 L₂)
Compare periods of these pendulums.
a) The period of the first pendulum is four times greater than the period of the second pendulum
(T₁ = 4 T₂);
b) The period of the first pendulum is two times greater than the period of the second pendulum
(T₁ = 2 T₂);
c) The period of the second pendulum is four times greater than the period of the first pendulum
(T₂ = 4 T₁);
d) The period of the second pendulum is two times greater than the period of the first pendulum
(T₂ = 2 T₁);
e) The periods of the pendulums are equal to each other (T₁ = T₂).