The answer is D. All of the above.
The bodies second line of defense is its immune system (remember, the first line of defense is the skin) The immune system includes white blood cells, etc etc...... It takes affect when a virus or germ enters the body.. basically any 'foreign cell'..... and the immune system would respond and kill it
As far as i’m aware all schools/professors/teachers check for plagiarism especially on essays. Plagiarism is illegal and can get you kicked out of school so be careful.
Rowing, as it creates a rhythmic cycle of strength enduring it.
