Answer:
A. The sum of the two leg measures equals the hypotenuse.
Explanation:
We know that,
'Hypotenuse' is by definition longest side of the right triangle and is located opposite to the right angle.
Thus, options B and D are correct.
Moreover, using 'Pythagoras Theorem', we have that,

Thus, option C is also correct.
But, we know that option A i.e. 'Hypotenuse is the sum of the two leg measures' is never correct.
Hence, option A is not correct.