Answer:
Well me sometimes ,and ur nerves being irratated triggers them
Explanation:
This is the characteristic of intangibility
That means that you can't in any way test or see or smell the service but rather you have to rely on the provider's promise that it will be so. That's why it is intangible.
A is the answer, because if she burns another 501 add up all the calories are and subtract all the calories burned. She lost 1 calorie which is 1 calorie less then what she had at the beginning of the day. Hope this helped!