Here is the problem that I cannot figure out how to do. Please explain.

r = (5csc(θ))/(6csc(θ) + 3)

possibilities:

a) (36x^2) + (27y^2) + (30x) -25 = 0

b) (27x^2) + (36y^2) +(30x) -25 = 0

c) (36x^2) + (27y^2) + (30y) -25 = 0

d) none of the above

Thankyou so much for any help