Two numbers, A and $B,$ are stored in one byte floating point notation using the least significant $($rightmost$)3$ bits for the exponent. Both parts of each number are in $2\text{'}$s complement.

If the A and $B$ are $01000111$ and $11101000,$ then $A+B$ in the same notation as the operands is $($select the best answer$)$

$00100110$

None of the numerical answers

$00010111$

Any of the numerical answers

$00001000$