A self report survey contains the following 4 items representing different aspects of the personality trait introversion. All items are reported on a 1-? scale ['I : strongly disagree. T" : strongly agree). Q1: My friends say I am the life of the party 02: I would rather stay home watching a movie on a Saturday night than go to a club Q3: | feel more refreshed by spending time alone than spending time with other people The researchel's dataset currentlyr contains only those 3 variables (0.1 {13]. Which of the following tasks should their next step be? C'I a. Calculate an average score of {11. Q2. 03 C." b. Run descriptive statistics on the variable 'extraversion' C" c. Reverse-score Q2 C'I d. Reverse-score Q'l