问题如下：
With respect to trading costs, liquidity is least likely to impact the:
选项：
A. stock price.
B. bid–ask spreads.
C. brokerage commissions.
解释：
C is correct.
Brokerage commissions are negotiated with the brokerage firm. A security’s liquidity impacts the operational efficiency of trading costs. Specifically, liquidity impacts the bid–ask spread and can impact the stock price (if the ability to sell the stock is impaired by the uncertainty associated with being able to sell the stock).
with respect to trading costs 这句话什么意思？不太明白