Question

Which set is closed under the operation multiplication?

A.
{1, 2, 4}

B.
{0}

C.
{0.5, 1, 2}

D.
{1, 2, 3, 4, 5}Which set is closed under the operation multiplication?

A.
{1, 2, 4}

B.
{0}

C.
{0.5, 1, 2}

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