The characters A$,$ B$,$ FLAG, and ESC are given the following codes:

A: $01010101,$ B: $11001100,$ FLAG: $1111000,$ ESC: $00001111$

Assume that byte count framing is to create the following frame:

$000001010101010111001100000011111111000$

What is the original content that this frame corresponds to$?$

a$.5-$A$-$B$-$ESC$-$FLAG

$000001010101010111001100000011111111000.$

b$.5-$A$-$B$-$FLAG

c$.$ A$-$B$-$FLAG

d$.$ None of the above