Identify the correct statement about experience rating in group insurance.

a. It provides a direct economic incentive for risk managers to control claims.

b. The experience of smaller groups is considered sufficiently statistically credible or reliable to determine premiums completely.

c. The smaller the group, the more credit the group receives for its own claims experience.

d. Most small companies have experience-rated premiums in which the groups own claims experience affects the cost of coverage.

e. Final experience-rated premiums exclude administrative charges and fees.