Q 2243467343.    

Assertion : In a `Delta ABC, vec(AB) + vec(BC) + vec(CA) = 0`

Reason : If `vec(AB) = vec(a) , vec(BC) = vec(b)`, then `vec(AC) = vec(a) + vec(b)` (Triangle law of addition)

A Both A and R individually true and R is the correct explanation of A
B Both A and R are individually true but R is not the correct explanation of A
C A is true but R is false
D A is false but R is true

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