Answer: c. I want to improve my grades by working a lot harder than last year.
Explanation:
The answer c) would be the best goal for her because in that way after improving her grades by working harder she will see and decide which technique is best for her good grades.
Other options in the question can be harmful to her goals because they can make pressure on her and demotivate her. She must try first to work harder than the last year and in that way, she will see how she can set the new goal.
D brushing teeth removes plaque and food particles
The diagnostic test that records the electrical activity of the heart is called ECG or Electrocardiogram. An ECG is a painless and simple test, which uses electrodes arranged and attached to your skin, and records the activity of the heart. ECG detects any abnormal rhythm and pattern of the heart beat and this helps doctors in diagnosing arrhythmias.
Talking to friends/family
having alone time to yourself, meaning doing something you like or relaxing
sleep
i hope this helped if this is what you were asking for
Answer:
The blood picks up co2 and also waste from the tissue. So I am guessing that it is co2.
Hope this helps.