✔ 最佳答案
Before answering the question, you should explain Money supply definition :
M1 : The sum of legal tender notes and coins held by the public + customers' demand deposits placed with banks.
M2 : M1 + customers' savings and time deposits with banks + negotiable certificates of deposit (NCDs) issued by banks held outside the banking sector.
M3 : M2 + customers' deposits with restricted licence banks and deposit-taking companies + NCDs issued by these institutions held outside the banking sector.
1. Fewer people use cash to settle bills, that means public will hold less cash. Then M1 will decrease.
2. Because the increase in interest on demand deposit will attract the fund from savings deposit (M2), M1 will increase.
You can get full mark, if you follow it.