If |a| = 4 and -3 ≤ λ ≤ 2, then the range of |λa| is
A. [0, 8]
B. [-12, 8]
C. [0, 12]
D. [8, 12]
Answer:C
If |a| = 4 and -3 ≤ λ ≤ 2, then the range of |λa| is
A. [0, 8] B. [-12, 8] C. [0, 12] D. [8, 12]