When Θ = 5 pi over 3, what are the reference angle and the sign values for sine, cosine, and tangent?
a. θ' = π/3 , sine and cosine are positive, tangent is negative
b. θ' = π, cosine is positive, sine and tangent are negative
c. θ' = −5π/3 , cosine is positive, sine and tangent are negative
d. θ' = − π /3 , sine and cosine are positive, tangent is negative
