For each of the following $4-$bit arithmetic operations, determine if signed overflow flag $)=(1$ will be generated and explain your reasoning for each case. The value before the vertical line $(l)$ is the carry$-$out bit.

$|)$:$\}$

b$.$

$1001$

$+,1010$

$110011$

c$.03$

$\frac{+0A}{0D}$