A.I. Explanation:

Option 1: "The development of digital versions of board games"

Explanation: This option is incorrect because the text does not mention digital versions of board games as a factor in their resurgence. Instead, it highlights the appeal of traditional board games, emphasizing tactile experiences and social interactions.

Option 2: "The introduction of board game apps on smartphones"

Explanation: This option is incorrect as the text does not discuss board game apps or their impact on the resurgence of board games. The focus is on the physical and social aspects of board games rather than digital adaptations.

Option 3: "The decreasing cost of board games"

Explanation: This option is incorrect because the text does not mention the cost of board games as a factor in their resurgence. The emphasis is on the nostalgia and social interaction that board games provide, rather than their affordability.

Option 4: "The desire for tactile experiences and social interaction"

Explanation: This option is correct as the text explicitly states that the resurgence of board games is driven by the appreciation for tactile experiences and social interaction, particularly among younger people. This aligns with the main idea of the text, which highlights the emotional and social benefits of playing board games.