Which of the following vectors are parallel?
1. Please select the two vectors that are parallel.
A. < -3, -3, 0 >
B. < 10, -20, -15 >
C. < -9, -12, -12 >
D. < -25, 15, -25 >
E. < 15, 12, -12 >
F. < 27, 36, 36 >
2. Please select the two vectors that are parallel.
A. < -20, -10, 20 >
B. < 6, 12, -12 >
C. < 2, 8, 8 >
D. < -20, 5, 0 >
E. < -15, -15, -3 >
F. < -10, -5, 10 >