Based on the backlog metrics in the chart, what can explain the jump in points at the end of iteration 4?
A . The team neglected to account for support and maintenance costs associated with other supported products
B . The team discovered that previously accepted work could be greatly improved and added story points associated with that work
C . The team realized that some stories were underestimated relative to other stories and reestimated as needed
D . The team learned that the product owner needed to increase the output in the next release
Answer: D