Answer:
A
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y =
x - 5 ← is in slope- intercept form
with slope m = 
Parallel lines have equal slopes, thus parallel line has slope of 
The line crosses the y- axis at (0, 6) ⇒ c = 6
y =
x + 6 ← equation of parallel line → A