Final answer:
Thomas Paine referred to the fight for independence from British rule as a cause of great worth in his pamphlet Common Sense, which inspired the American colonies' quest for autonomy and the establishment of a republic.
Step-by-step explanation:
Thomas Paine writes that "the sun never shined on a cause of greater worth," referring to A) The fight for independence from British rule. This cause is highlighted in Paine's influential pamphlet Common Sense, which presented a compelling case for the colonies' autonomy from Great Britain. Paine argued against hereditary monarchy, proclaiming the natural right to equality and promoting the idea of an American republic governed by the people rather than a king. By addressing both economic grievances and natural rights, Paine's work resonated with a broad audience in the colonies, fueling the desire for independence and revolution.