To find the number of people for each blood type, we must interpret the Roman numerals in the Venn diagram as the number of people in each region. This is an assumption made due to the absence of explicit numerical data in the diagram and the request for "the number of people". Assumption: Roman numeral I represents 1 person, II represents 2 people, III represents 3 people, and so on. Step 1: Identify the blood type corresponding to each region in the Venn diagram. Region I: A- Region II: AB- Region III: B- Region IV: A+ Region V: AB+ Region VI: B+ Region VII: O+ Region VIII: O- Step 2: Use the assumption to determine the number of people for each requested blood type. a) B+ The blood type B+ is located in Region VI. According to our assumption, Region VI represents 6 people. The number of people with B+ blood type is $\boxed{\text{6 people}}$. b) AB- The blood type AB- is located in Region II. According to our assumption, Region II represents 2 people. The number of people with AB- blood type is $\boxed{\text{2 people}}$. c) A+ The blood type A+ is located in Region IV. According to our assumption, Region IV represents 4 people. The number of people with A+ blood type is $\boxed{\text{4 people}}$. d) AB+ The blood type AB+ is located in Region V. According to our assumption, Region V represents 5 people. The number of people with AB+ blood type is $\boxed{\text{5 people}}$. e) O+ The blood type O+ is located in Region VII. According to our assumption, Region VII represents 7 people. The number of people with O+ blood type is $\boxed{\text{7 people}}$.