According to the Constitution, at what age may a candidate run
for the office of president of the United States

To serve as president, one must: be a natural-born U.S. citizen of the United States; be at least 35 years old; be a resident in the United States for at least 14 years.

lincoln won 212 electoral votes to mcclellan's 21 votes, and lincoln beat mcclellan. is the main reason lincoln won in 1864.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering