4.
Which of the following is the correct sequence of the proof to the given problem below?
C
Given: CAE and LEAR are complementary angles
Prove: CALAR
Proof:
1. mZCAE and mLEAR = m_CAR by angle addition postulate and m_CAR = 90
by transitive property.
II. CAR is a right angle by definition of right angles, therefore CA I AR by definition
of perpendicularity.
III. CAE and LEAR are complementary, then mZCAE + LEAR = 90 by definition
of complementary angles.
A. I, II, III
B. II, I, III
C. III, II, 1
D. III, I, II​