Which rule has a confidence equal to 50%?

Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
The minimum support is 25%. Which rule has a confidence equal to 50%?

A.
{bread,milk} => {cheese}

B.
{bread} => {milk}

C.
{juice} => {soda}

D.
{bread} => {cheese}