Answer:
C). Character vs nature.
Step-by-step explanation:
Conflict is described as the clash or disagreement of the characters with combatant forces. These forces may include the antagonist, other characters, nature, society, etc. These conflicts bring an action to the narrative that leads to create tension and keep the interest of the readers intact.
As per the question, Crusoe's struggle with surviving on the island exemplifies the 'character vs nature' as here the character 'Crusoe' is struggling with the opposing force(nature) to survive and withstand the combatant circumstances as put in by nature. Thus, option C is the correct answer.