1000 students participated in a survey on a university campus about their tv watching habits. all
respondents said they watched tv at least at some point during the day. 27% stated that they only
watched television during prime time hours (8pm - 10pm.) and 61% stated that they spend prime time
hours in their dorm rooms.

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality