Kindly explain this :

Statement-1: If the rectangular components of a force are 8 N and 6N, then the magnitude of the force is 10N.
Statement-2: If $\left|\overrightarrow{A}\right|=\left|\overrightarrow{B}\right|=1 \mathrm{then} {\left|\overrightarrow{A}\times \overrightarrow{B}\right|}^2+{\left|\overrightarrow{A}·\overrightarrow{B}\right|}^2=1$
(A) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
(B) Statement-1 is True, Statement-2 is True: Statement-2 is NOT a correct explanation for Statement-1
(C) Statement-1 is True, Statement-2 is False
(D) Statement-1 is False, Statement-2 is True