In the retrospective meeting, team discussed few measures to reduce the build time from 10 minutes to 5 minutes. They found that a particular module takes more time and decided to refactor it to improve build time. Team had done such improvements in the past. When the team shared this with Product Owner, product owner asked to implement it in future iterations. What is the problem with this goal?
a. It is not specific
b. It is not measurable
c. It is not attainable
d. It is not timely