Which Is True with Regard to the Optimism-Pessimism Self-Assessment Inventory

Which is true with regard to the optimism-pessimism self-assessment inventory in Chapter 17 ("Applying Social Psychology to the Good Life") ?

A) Moderate optimism is signified by a score in the 50-75 range.
B) The inventory is inclusive in terms of the domains that are covered.
C) Some degree of measurement validity was established in its development.
D) Respondents can learn if their profile is a mixed one or not.