Fill in suitably. Jina has been watering the plants.................... 5pm.AsinceBforCfromDatAnswer: A. since Read Explanation: "Jina has been watering the plants since 5pm."Explanation:"Since" is used to indicate the starting point of an action that began in the past and continues to the present (e.g., "since 5pm")."For" is used to show a duration of time (e.g., "for 2 hours").In this case, since you're referring to the specific time when Jina began watering the plants, "since" is the appropriate word. Read more in App