The value of ∮r3z - 5dz(z - 1)(z - 2)along a closed

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The value of ∮r 3z - 5 dz
(z - 1)(z - 2)

along a closed path R is is equal to (4πi), where z = x + iy and i
= √- 1 . The correct path r is

Correct Option: B

∮_r	3z - 5	dz = 4πi = 2πi (2)
	(z - 1)(z - 2)

Sum of residues must be equal to 2

There force z = 1 must lies inside C
Z = 2 lies outside C