When did lewis and clark start their expedition

May 14, 1804

Explanation:

The Lewis and Clark Expedition ran from May 14, 1804 to September 23, 1806 as the search for the Northwest Passage. The began in St. Louis, Missouri and ended at the Pacific Ocean (in what is now Oregon).

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.

if i am correct the answer is going to be a) the federal program of reconstruction ended.