Use Cramer's rule to compute the solution of the system.
[x₁ + 3x₂ + x₃ = 4]
[-x₁ + 2x₃ = 2]
[3x₁ + x₂ = 2]
a. (x₁ = 1, x₂ = 1, x₃ = 1)
b. (x₁ = 2, x₂ = -1, x₃ = 1)
c. (x₁ = 3, x₂ = 2, x₃ = 1)
d. (x₁ = -1, x₂ = 3, x₃ = -2)