In the question given below, a passage is followed by three statements which may or may not be inferred from the passage. Select the correct combination of statements that can be inferred. Passage: Research indicates that regular physical exercise significantly boosts cognitive function and memory retention in older adults. The study suggests that aerobic activities, such as brisk walking or swimming, increase the blood flow to the brain, specifically targeting the hippocampus. While exercise is a major factor in brain health, researchers noted that genetic factors and diet also play a role in determining overall mental sharpness in later life. Statements:
I. Aerobic exercise is the only factor that influences memory retention in older adults.
II. Physical activities like swimming can have a positive impact on brain physiology.
III. Lifestyle choices, including diet, contribute to cognitive health alongside physical activity.