Answer:Option B - Tenths Step-by-step explanation:Given : Number rounded 0.799 to 0.8.To find : To which place value is the number rounded?Solution : According to place value system, Ones Tenths Hundredths Thousandths 0.799- 0 7 9 90.8- 0 8As [tex]0.799=0.8-0.001[/tex]0.8 have one decimal places so the number 0.799 hounded from one decimal places.Around one decimal place is tenth.Therefore, Tenth place value is the number rounded.So, Option B is correct.