Need help asap please

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.

What structural formula represents 4 electrons shared between two atoms?