The yield on tax-exempt bonds is ______.

A european call option gives the buyer the right to _________.

The __________ was established to protect investors from losses if their brokerage firms fail.

All else equal, call option values are _____ if the _____ is lower.

All else the same, an american-style option will be ______ valuable than a ______ style option.

Sinking funds are commonly viewed as protecting the _______ of the bond.