4. An analyst gathers the following information about a put option on a non-dividend-paying stock:

• Strike price: 50.00
• Underlying stock price at Time 0: 52.00
• Underlying stock price at Time 1 when an up move occurs: 76.24
• Underlying stock price at Time 1 when a down move occurs: 34.12
• European-style put value at Time 1 when an up move occurs: 0.00
• European-style put value at Time 1 when a down move occurs: 14.88
• Time steps: 2
• Risk-free interest rate per period: 2.05%

The early exercise premium of the American-style put option at Time 0 is closest to: