JEE Main 2020 Physics question

A metallic sphere cools from 50ºC to 40ºC in 300 s. If atmospheric temperature around is 20ºC, then sphere's temperature after the next 5 minutes will be close to :

• (A)33ºCCorrect
• (B)31ºC
• (C)35ºC
• (D)28ºC