Concept:The total time is the sum of the six bar heights shown on the chart.Explanation:From the bar chart, the times allocated to the six subjects are:80, 160, 200, 80, 128, and 72 minutes.Add these values together:80+160+200+80+128+72=720So, the total time allocated to the six subjects per week is 720 minutes.Answer:B. 720 mins