Which of the Following Is a Reason for the Decline

Multiple Choice

Which of the following is a reason for the decline in FX trading?

A) The number of FX traders has decreased due to mergers of investment banks.
B) Advancements in technology have increased the efficiency of each FX trader, reducing the need for as many.
C) The move towards a single currency in Europe has reduced the need for FX trading.
D) All of the listed options are correct.