please answer 3A and 3B both

Question 3: (Total Marks = 2.5 + 2.5 = 05) The year 2017 was a tough one for Uber Technologies Inc. An Uber engineer posted a blog called Reflecting on One Very, Very Strange Year in Uber," in which she detailed, among other things, a culture of harassment at Uber. Almost at once, Uber values that symbolized its "win at any cost way of doing things (values like "builders build, always be hustlin'," and meritocracy and toe stepping) were called into question. So in 2017, not only was Uber's core employee turnover too high, but six top executives stepped down, including the president, finance head, senior vice president of engineering, and CEO Travis Kalanick. Uber's Board of Directors retained former attorney general Eric Holder, Jr. to conduct an analysis of Uber's culture. Holder's recommendations provide insight into the problems Uber needed to address. The lawyers recommended, for instance, that Uber: prohibit relationships among employees where one person reports to the other; institute guidelines on using drugs at work; adopt a zero tolerance policy with respect to harassment, discrimination, and retaliation; broaden its recruitment practices to include sources of minority job candidates; and that the Board of Directors create a special ethics and culture committee. Question: 3A. What effective retention measures should Uber Technologies undertake in order to control the turnover rate at company? 3B. To hire an Uber engineer, design a set of 5- question interview, considering a balance of all the interview content perspectives needed to be considered while interviewing candidates