Tanisha and Neal are simplifying the expression ( (x^4 ) (y^-5 Baseline) / 3 (x^2) (y^- 3 ) ) ^4. They each began the same way. Choose all that are correct.

Select the correct answer. given: ad = cf bc = de prove: ab = ef statement reason 1. ad = cf given 2. ad = ab + bc + cd cf = cd + de + ef segment addition 3. ab + bc + cd = cd + de + ef transitive property of equality 4. ab + bc = de + ef 5. bc = de given 6. ab = ef subtraction property of equality what is the reason for the fourth statement in this proof? a. definition of collinear points b. segment addition c. subtraction property of equality d. substitution property of equality