lets try to decode it...
since we have 31 bits floating point number... where 1 bit reserved for sign(s) value.
and bias value = 127 . since bias value= 2n-1 -1 = 127 ' therefore n=8
so bits reserved for exponent(e) = 8bits
bits for mantissa(M) = 31-(1+8) = 22bits.
now... normalized value = (-1)s * 1.M * 2e (e=available exponent)
since BIASED EXPONENT= BIAS + AVAILABLE EXPONENT
=>AE = (00111110)2-127
= -65
so value = (-1)1 * 1.0000000001000000000000 * 2 -65
=-1 * (1+.0000000001000000000000) *2 -65
= -1 * (1+ 2-10) * 2 -65
so answer is option C.