Answer
c.
Work Step by Step
To calculate the probability of getting the heads on two consecutive coin flips, you multiply together the individual probability of getting heads on a single coin flip, which is $\frac{1}{2}$. If we are calculating for two consecutive coin flips of getting a head on each coin flip, we multiply $\frac{1}{2}$ by $\frac{1}{2}$.
So:
$$\frac{1}{2} \times \frac{1}{2} = \frac{1}{4}$$
The probability of getting a heads twice on two consecutive coin flips is $\frac{1}{4}$.