**a) same as the pressure initially**

**b) 2 times the pressure initially**

**c) 10 times the pressure initially**

**d) 20 times the pressure initially**

**Answer:**

The correct option is d) 20 times the pressure initially

Explanation: Because the container’s volume (V) remains constant. As a result, when the temperature (T) increases tenfold (from 300 K to 3000 K), pressure (P) increases tenfold, as P is proportional to T.