Two fair coins are tossed at the same time. What is the probability they will both land as "HEADS"?
(A) 0
(B) 1
(C) $\frac{1}{2}$
(D) $\frac{1}{3}$
(E) $\frac{1}{4}$
When two coins are tossed, there are four equally likely outcomes: HEADS and HEADS, HEADS and TAILS, TAILS and HEADS, and TAILS and TAILS. One of these four outcomes has both coins landing as HEADS. Thus, the probability is $\frac{1}{4}$.

Answer: (E)