Dual-slope integration type Analog-to-Digital converters provide
1. Higher speeds compared to all other types of A/D converters.
2. Very good accuracy without putting extreme requirement on component stability.
3. Good rejection of power supply hum.
4. Poor resolution compared to all other types of A/D converters for the same number of bits.
Which of these statements are correct?

A. 2 and 3 only

B. 3 and 4 only

C. 4 and 1 only

D. 1, 2, 3 and 4

Answer: Option A