From figure the correct relation is

Options

A. a. `vec(A)+vec(B)+vec(E )=vec(0)`
B. b. `vec(C )-vec(D)=-vec(A)`
C. c. `vec(B)+vec(E )-vec(C )= -vec(D)`
D. d. All of the above

Answer

D

Explanation

In `DeltaMNO,vec(A)+vec(C )-vec(D)=orArrvec(C )-vec(D)=-A`
Hence, (b) is correct.
In `DeltaMNP,vec(A)+vec(B)+vec(E )=0`
Hence ,(a) is correct.
In `square MPNO, -vec(E )-vec(B)+vec(C )-vec(D)=0`
`rArrvec(B)+vec(E )-vec(C )= -vec(D)`
Hence, (c) is correct.