The photostaken during the hike displayed the (5)........................(joy / joyful / joyfully) of their unforgettableexperience

In the given sentence, you need to fill in the blank with the correct form of the word related to "joy." Here's how to determine which option to use:

1. Understanding Context: The blank is followed by "of their unforgettable experience," which indicates that the word should describe a state or condition related to happiness.

2. Identifying Word Forms:

   • "joy" is a noun.
   • "joyful" is an adjective.
   • "joyfully" is an adverb.

3. Grammatical Structure: Since the blank needs a description of the "experiences" that reflects a state of happiness, an adjective (joyful) is required to modify the noun.

Based on this reasoning:

Final Answer

The correct word to fill in the blank is joyful. Thus, the completed sentence reads: "The photos taken during the hike displayed the joyful nature of their unforgettable experience."