I think the answer is D (if you get it wrong it's my fault)
On email because you can send someone something on your computer in less then 3 seconds and also our society is always anxious about receiving a email or notification so email is better
Beacuse he is happy is mood swings go up and he will be better
Explanation:
I'm not sure if I can give you a paragraph. but its should be free because some people come from poor areas, and might not be able to afford it, it could be way too expensive. hope this helps.
1. 105 RMB = $16.18
2. 10.500 RMB =$1.62
3. 2.300 RMB = $0.35
4. Rp. 15.000 = $0.0011
5. Rp. 32.000 = $0.0023
6. 5500 USD = $5500
7. 8.000 Yen = $0.077
8. 4.200 HKD = $0.54
9. 6.970 Euro = $8.43
10. 7.400 RMB = $1.14
