Choose the correct pair : {:((a), "Energy of satetllite",-,"Positive"),((b), "Gravitational field",-,"Positive"),((c), "Escape speed",-,"Positive"),((d), "Gravitational of force",-,"Positive"):}

Choose the correct pair : {:((a), "Energy of satetllite",-,"Positive"

1.	Choose the correct pair : {:((a), "Energy of satetllite",-,"Positive"),((b), "Gravitational field",-,"Positive"),((c), "Escape speed",-,"Positive"),((d), "Gravitational of force",-,"Positive"):}
Answer» ANSWER :C