Black-Scholes Option Valuation Model

All of the following are correct about the impact of an increase in the single variable under the Black-Scholes Option Valuation Model EXCEPT:

  1. Market price has a positive impact on put options.
  2. Strike price has a positive impact on put options.
  3. Expiration time has a positive impact on call options
  4. Stock volatility has a positive impact on call options.