Answer:(c)
Step-by-step explanation:
option c represent [tex]\vec{2a}-\vec{2b}[/tex]
According to the law of vector addition, When two vectors are added such that they are represented as two sides of a triangle in magnitude taken in the same order, then the third side represents the results of the two with order opposite of two.
In option c order of [tex]\vec{2a}[/tex] and [tex]-\vec{2b}[/tex] are same and thus third side represent the resultant of two.
