Which set is closed under the operation multiplication?

a.
{1, 2, 4}

b.
{0.5, 1, 2}

c.
{0}

d.
{1, 2, 3, 4, 5}

Choose the equation below that represents the line that passes through the point (2, 4) and has a slope of 3. a) y − 4 = 3(x − 2) b) y − 2 = 3(x − 4) c) y + 4 = 3(x + 2) d) y + 2 = 3(x + 4)