When a manufacturer changes from using a single plantwide predetermined overhead rate to multiple predetermined overhead allocation rates, the product unit cost may be more accurate

Economists' attempts to explain the term structure of interest rates

A) illustrate how economists modify theories to improve them when they are inconsistent with the empirical evidence. B) illustrate how economists continue to accept theories that fail to explain observed behavior of interest rate movements. C) prove that the real world is a special case that tends to get short shrift in theoretical models. D) have proved entirely unsatisfactory to date.

Which of the following would be the least effective option for a user interface design?

A) letting users easily undo their actions or return to previous states B) making the common tasks very simple to do, so users can accomplish them on the first try without frustration C) letting users know in an indirect way when something on the website changes, or the user has completed an action D) avoiding the addition of unnecessary links or options especially when the user is engaged in a sequential task