How Does Arbitrage Differ from Speculation

Multiple Choice

How does arbitrage differ from speculation?

A) Speculation, unlike arbitrage, is never used to protect against risk.
B) A speculator buys or sells foreign currency with the hope that that currency will either weaken or strengthen in the future, resulting in a profit.
C) Speculation is the purchase of foreign currency on one market for the immediate resale on another market.
D) Arbitrage is another way to speculate for profit or protect against risk.