The line that draws power supply to your house from the street has 

(a) zero average current
(b) 220 V average voltage
(c) voltage and current out of phase by 90°
(d) voltage and current possibly differing in phase ϕ such that ϕ<π2

1. (b, c)

2. (a, d)

3. (b, d)

4. (a, c)

(a, d) Hint: AC currents are used in domestic supplies.
For household supplies, AC currents are used which are having zero average value over a cycle.
The line is having some resistance so the power factor, cos ϕ=RZ0
So,                            ϕπ/2ϕ<π/2
i.e., phase lies between 0 and π/2.