Which expression is equivalent to 36a5b3c+27a4b2c2−45a3b4c?
9a3b2c(4a2b+3ac−5b2)
9a3b2c(4a2b+3ac−5b2c)
9a3b2(4a2bc+3ac2−5b2c)
9a3b2c(4a2b+3ac+5b2)