Which spelling rule corresponds with the words hoping, whales, and glided?

The correct choice for the spelling rule that corresponds with the words hoping, whales, and glided is indeed the Changing rule. This rule pertains to the changes that occur in a word when adding prefixes or suffixes or when modifying the base form to conform to spelling conventions.

In the case of "hoping," the "p" is changed to a single "p" when adding the suffix "-ing." For "glided," the "d" is also changed in spelling rules applied in verb conjugation. Finally, "whales" demonstrates a change involving adding "s" to the base form "whale."

This Changing rule is essential for understanding how the spelling of a root word can modify when affixes are attached or when it's subjected to specific grammatical transformations. Other rules, such as the Dropping rule, Magic e rule, or Doubling rule, do not apply in this context as they focus on different aspects of spelling and pronunciation changes.