Answer:
(B) Hardening sprints
Explanation:
Hardening Sprints are not allowed because the subject of hardening should be continuously address throughout normal Sprints.
Or if the question has the following options:
Which of the following is not allowed in Scrum?
a. Using Story Points
b. Hardening Sprints
c. Release Planning
d. Using Planning Poker
Answer:
(B) Hardening sprints
Explanation:
Using Story Points, Release Planning, Using Planning Poker are not mandatory but allowed. Only hardening sprints are not allowed.