Which two lines are parallel?

i. 5y=-3x-5

ii.5y=-1-3x

iii.5y-2x=-1

a.
i. and ii.
c.
ii. and iii.
b.
i. and iii.
d.
no two of the lines are parallel.

Equation: 5y=-3x-5
Divide Equation by 5, 
y = -3/5 - 1

Slope = -3/5

Equation: 5y=-1-3x
Divide Equation by 5, 
y = -3/5x - 1/5

Slope = -3/5

Equation: 5y-2x=-1
5y = 2x - 1
Divide equation by 5, 
y = 2/5 x - 1/5

Slope = 2/5

We know, Parallel lines must be same slope, & 1st and 2nd has same so they are parallel.

In short, Your Answer would be Option A) I and II

Hope this helps!