题目选项分析

Even when the price of a stock is range-bound for several months, the volatility of its price within that range can swell the call option premium: the more the price of the stock moves, the higher the price of the stock's call options will be

Even when the price of a stock is range-bound for several months, the volatility of its price within that range can swell the call option premium: when the price of the stock moves more, then the higher the price of the stock's call options