Answer:The correct options are (C)and (D) are correct.
Explanation:
A vector is defined as quantity which have magnitude and direction. it is represented by the arrow whose direction is same as that of the quantity.Fro example : velocity, force, acceleration , work done etc.
Magnitude is a term which means size or extent or importance of something.
From this we can conclude that vectors always consists of direction and size(magnitude). Hence options(C)and (D) are correct.
