Answer:
The correct statement about learning curves is:
d. The u-shape Learning Curve is the most widely accepted
Step-by-step explanation:
The U-shaped learning curve explains the learning behavior in which the learner first learns the correct behavior, which is initially abandoned before being returned to once again. And a learning curve is a visual or graphical representation of the length of time that it takes a learner to acquire new skills or knowledge. When knowledge or skills are acquired within a short period, this translates to cost savings for the organization that is imparting the learning to its workers.