Thomas jefferson was important in the revolutionary era because
a) he wrote much of the declaration of independence.
b) he was elected the president of the continental congress.
c) his philosophies were used in the influential pamphlet common sense.
d) his leadership and moral stand lead to the colonies to fight for the abolition of slavery.

Thomas Jefferson contributed in the Revolutionary war as he wrote in Declaration of Independence.

Explanation:

Jefferson was a political philosopher and scholar. He was from the Democratic-Republican Party. He was known to many intellectual leaders from England and France. In the Declaration of Independence, Jefferson operated the idea of "unfair rights" in similar to the idea of natural rights, which comes from Locke.

According to him (Locke) there are many rights with which people are born and these rights cannot be taken away by the government. Similar to Locke, Jefferson stated that all men (people) are created with equal rights and they should be treated equally.

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

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explanation: