A. Helps fight the intruders and are custom - made to each virus.
<span>it varies based on the location of school.</span>
I don't kno if u need the answer still but I think it's B
The "Talk Test" was developed to be an informal subjective method of estimating appropriate way to monitor your cardiorvascular exercise intensity
Answer: some ways you can make people involved are playing music while working out, bring in some fun workout objects, play tag (running). Working out with friends can sometimes distract you and make you workout less.
Explanation: