The correct answer is option 3: Georgia. The first Continental Congress was held in Philadelphia in 1774 and was attended by representatives from twelve of the thirteen American colonies. Georgia was the only colony that did not send delegates to the congress.

Option 1: Rhode Island. Rhode Island did in fact attend the first Continental Congress, so this option is incorrect.

Option 2: Connecticut. Connecticut also attended the first Continental Congress, so this option is incorrect.

Option 4: Maryland. Maryland attended the first Continental Congress, so this option is incorrect.

In summary, while Rhode Island, Connecticut, and Maryland were all present at the first Continental Congress, Georgia was the only colony that did not send representatives to the congress.