Arrow $AB$ which is a line segment of exactly $5$ units along with an arrowhead at $A$ is to be constructed in the

Arrow $AB$ which is a line segment of exactly $5$ units along with an arrowhead at $A$ is to be constructed in the $xy$-plane. The $x$ and $y$ coordinates of $A$ and $B$ are to be integers that satisfy the inequalities $0 \le x \le 9$ and $0 \le y \le 9.$ How many different arrows with these properties can be constructed?

A. 50
B. 168
C. 200
D. 368
E. 536

Answer: E

Source: Manhattan GMAT

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