Which polynomial contains the powers in descending order?
A. -2x^2+1+3x^4-x^3+4x^5
B. 1-2x^2-x^3+4x^5+3x^4
C. 3x^4-x^3+4x^5-2x^2+1
D. 4x^5 + 3x^4-x^3-2x^2+ 1

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte