Stretching increases flexibility, sit-ups are for abdominal endurance, and distance running are for leg muscle endurance, so the correct answer is pull ups.
Several of them are outside the normal range the Normal range is like 50 but if you could re-write the question I will help but I think 5th percentile is low so that's my best answer.
Physical texture is tangible, meaning it is texture that you can actually feel with your hand. The opposite of physical texture would be visual texture.