What year did the federal government declare the last Monday in May Memorial Day instead of May 30?

I work best on a deadline so I start projects close to their due date.

A.) 1868

A.) 1868

I work on the tasks that I enjoy most first.

B.) 1901

B.) 1901

I work on the tasks that I enjoy most first.

C.) 1954

C.) 1954

I work on the tasks that I enjoy most first.

D.) 1971

D.) 1971