The ocean that connects Europe and America is the Atlantic Ocean.
The Atlantic Ocean is the second largest ocean in the world and it separates the continents of North and South America to the west from Europe and Africa to the east. The ocean covers an area of approximately 41 million square miles and has an average depth of 12,080 feet.
The Atlantic Ocean plays a vital role in global trade, transportation, and climate, with major ports and shipping lanes located throughout the region. The ocean also contains a diverse range of marine life and resources, including fish, oil, and natural gas.
Therefore, the answer is option C: Atlantic Ocean.