B problem solver this is correct answer in my opinion
The answer to this question is Lube.
This process involves cleaning every parts of the frozen yogurt machine (even the smallest one on the inside)
This is really important because a frozen yogurt machine will always leave residual ingredients on its smallest parts and it could go rotten if it left inside
An introvert, because she likes to keep to herself.
<span>More than 80 percent of adults do not meet the guidelines for both aerobic and muscle strengthening activities found in healthy people 2020. Sorry if I'm wrong but I think there should be an options to choose as it is difficult to remember exact number.</span>
