Which quote from the selection shows that a character may be experiencing internal conflict?

No one, It seems, had though to check a weather forecast.

The last wisps of light dissolved.

James fussed at the others, who ignored him.

Arturo sighed heavily and wracked his brain to think of a plan. (MY ANSWER)

Right, again!

The quote "Arturo sighed heavily and wracked his brain to think of a plan" suggests that a character may be experiencing internal conflict. This is because the character's actions and emotions show signs of inner struggle or mental turmoil. The use of the words "sighed heavily" indicates a sense of frustration or stress, while "wracked his brain to think of a plan" implies that the character is grappling with a problem or decision. Through these descriptive details, the quote provides evidence that Arturo may be undergoing internal conflict.