Letter is to mail as money is to
(a)bank
(b)savings
(c)invest
(d)account
The correct answer is (a) bank.
To arrive at this answer, we need to understand the relationship between the words "letter" and "mail". A letter is something that you send using the postal system, and the act of sending it is often referred to as mailing. In this analogy, we need to find a similar relationship between "money" and one of the given options.
Money is typically stored, managed, and used through financial institutions, such as banks. Just as you would mail a letter through the postal system, you would deposit, withdraw, or manage money through a bank. Therefore, the correct answer is (a) bank.