The average life span of red blood corpuscles, also known as red blood cells or erythrocytes, is approximately 100-120 days. Option 1, which states a life span of 100-200 days, is too broad and includes a wider range that is not accurate. Option 3 suggests a life span of 160-180 days, which is slightly longer than the generally accepted range of 100-120 days. Option 4, which states a life span of 0-200 days, is also too broad and includes a range that is not specific to the average life span of red blood cells. Thus, option 2 is the most accurate choice among the given options. It is important to note that individual variations in the life span of red blood cells can occur depending on factors such as age, health conditions, and environmental factors, but the average life span is around 100-120 days.