问题如下：
Which is the most accurate statement regarding the demand for money?
选项：
A. Precautionary money demand is directly related to GDP.
B. Transactions money demand is inversely related to returns on bonds.
C. Speculative demand is inversely related to the perceived risk of other assets.
解释：
A is correct.
Precautionary money demand is directly related to GDP. Precautionary money balances are held to provide a buffer against unforeseen events that might require money. Precautionary balances tend to rise with the volume and value of transactions in the economy, and therefore rise with GDP.
考点： demand for money
解析：
A，预防性和交易性需求都是和GDP正相关，正确。
B，交易需求只和GDP成正比，与投资的收益无关，错误。
C，的正确说法应该是投机性需求和投资的收益成反比，而非风险成反比。错误。
c选项不太懂，投资跟风险成反比没错呀
