Answer:
b) BD, AB, EF, FH
Step-by-step explanation:
Let's see the definition of skew line.
A skew line is a line that is not parallel and not intersect.
Here we need to find skew line to GC, The skew line to GC should not parallel and should not intersect with GC.
From the given cube, we see the line BD, AB, EF and FH are the lines that are not parallel and not intersect the line GC.
Therefore, the answer is b) BD, AB, EF, FH
