If two vectors are collinear, which of the following statements is ALWAYS false?

If two vectors are collinear, which of the following statements is ALWAYS false?

• A. They are scalar multiples of each other.
• B. They can have different magnitudes.
• C. They must have the same direction.
• D. Their components are proportional.

Answer: C) They must have the same direction.

Explanation: Collinear vectors are parallel but can have opposite directions (anti-parallel). Thus, they don't must have the same direction.