In theatre lingo, what term means to give away lots of free tickets?

All of the following can be observed in the Buxheim Organ Book except:

A) dynamic markings B) barlines C) keyboard tablature D) more than 250 arrangements of sacred and secular vocal music

A theory is the result of a process of examining the nature of something and is therefore always __________.

Fill in the blank(s) with the appropriate word(s).