An $8$-bit, unipolar Successive Approximation Register type ADC is used to convert $3.5$ V to digital equivalent output. The reference voltage is $+5$ V. The output of the ADC, at the end of 3rd clock pulse after the start of conversion, is
- $1010 \: \: 0000$
- $1000 \: \: 0000$
- $0000 \: \: 0001$
- $0000 \: \: 0011$