Directions: Select the most appropriate word and fill in the blank.

It is too bad that many museums have had to abandon their ___________ entrance policies.

Gratuitous means something given freely without charge or expectation of payment. Museums abandoning 'gratuitous entrance policies' means they stopped offering free admission. 'Gregarious' means sociable, 'glowing' means shining, and 'gluttonous' means excessively greedy - only gratuitous fits the context of paid vs free entry.