Check my answer in bold .

use the figure to answer the question that follows:

when written in the correct order, the two-column proof below describes the statements and reasons for proving that corresponding angles are congruent:

which is the most logical order of statements and reasons i, ii, and iii to complete the proof?

select one:
a. i, iii, ii
b. ii, i, iii
c. ii, iii, i
d. iii, i, ii

The correct logical order of statements and reasons I, II, and III to complete the proof is:

Option: c.  II, III , I

Definition of a straight line--

The definition of a straight line states that the angles that lie in a straight line is 180°.

Hence, from the following figure we have:

∠SQT=180°

Angle Addition Postulate--

It states that if the point lie in between the ray, then the sum of two angles formed with the help of the ray is equal to the larger angle.

i.e.

∠SQV+∠VQT=∠SQT

Substitution Property of Equality--

It states that if:

a=b and a=c then b=c

Hence we have:

∠SQV+∠VQT=180°