Answer:
1. B. A word of greeting.
2. D. India
3. D. 4
4. A. You return the greeting
5. A. Pressing two palms together.
Step-by-step explanation:
The correct answer to the first question is option B. The sentence that proves this is: "Sawosdi" is the Thai word of greeting.
In the second question, option D is the correct one. Wai is used by the Thai but it originated in India. We can see this in the following line: The "wai" originated in India...
The third correct option is option D. The passage tells us that there are four levels of wai (The Thais refined it, resulting in four levels of "wai") and describes each of them.
In the fourth question, the correct option is option A. At the end of the passage, we're told what we should do when someone greets us like this - we should greet them back the same way: It is a convention that a greeting must be returned. So we reciprocate with the pressed palms raised slightly at the level of the chest with a bowed head.
Finally, the last correct option is option A. The author explains how wai is made several times by describing each type. The sentence that first explains it is: It is usually accompanied by a "wai," which is made by pressing the two palms together.