Reference: the action of alluding or mentioning something; source; things that you have used for an assignment
Answer:
I have a picture of a deformed man with a deep scowl on his face.
A : only people who copy a text word for word are plagiarizing
Hi there! I feel that C.) would be the best answer for this question. Fighting in a war wouldn't show that you value the culture of your homeland, like shown in answer A.). B and D seem irrelevant to the question at hand, and since the language of a country relates directly to the culture and answer C.) shows that Juhan values it, it'd be safest to go with that answer.
These will strengthen your argument. evidence from unbiased (aka, unopiniated and objective) and reliable (credible, believable) sources definitely gives you more to back up what you're saying.