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

Observe the figure.

After the given statements as:

Statement 1:

Statement 2: Points S,Q,R and T are all lie on the same plane.

Statement 3:

Statement 4:

Statement 5:

Now, the next statement is as:

Statement 6:   which is statement III.

(Same side interior angles theorem)

Statement 7: which is statement II.

(Substitution property of equality)

Statement 8:

which is statement I.

(Subtraction property of equality)

So, the correct order of the given reasons to complete the proof is III, II, I.

Therefore, Option 4 is the correct answer.

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