Reinforcement is a reduction in ________ resulting from a positive-response experience

When inventory declines in value below original (historical) cost, and this decline is considered other than temporary, what is the maximum amount that the inventory can be valued at?

a. Sales price b. Net realizable value c. Historical cost d. Net realizable value reduced by a normal profit margin

Drum buffers are:

A) A safety margin separating different projects scheduled to use the same resource. B) Extra safety that is applied to a project immediately after the use of the constrained resource. C) A constraint separating different projects that requires a common buffer. D) Extra safety that is applied to a project immediately before the use of the constrained resource.