Question

When can a Sprint be canceled?

a. The Sprint items are no longer needed

b. Sprint can never be canceled

c. When Development is unable to complete the work

d. Information required to start the development is not available

e. Whenever the Product Owner says

Answer 1

e. Whenever the Product Owner says

Reasoning

The power to cancel the Sprint lies only with the Product Owner. He/She can call to cancel an ongoing Sprint when the Sprint Items are no longer required by the business i.e. the items have become obsolete.