Concept:Laying percentage is the ratio of eggs produced per day to the total number of birds, expressed as a percentage.Explanation:Eggs collected per day =800Total number of birds =1200Since each bird can lay at most one egg per day, the laying percentage is:Laying percentage=Total birdsEggs collected per day×100Substitute the given values:=1200800×100Simplify 1200800 to 32:=32×100=66.67%Rounded to the nearest whole number, this equals 67%.Answer:67%, which is option B.