[单选题]
An ideal gas in a contai3 gaz8y7t 4u6hsu6xwj ner of volur 0 8ayq-g 0f2efniog9me $100 cm^{3}$ at $20 \; ^{\circ}C$ has a pressure of $100 \; N/m^2$. Determine the number of gas molecules in the container.
A. $4.2 \times 10^{6}$
B. $6.0 \times 10^{23}$
C. $2.5 \times 10^{18}$
D. $5.2 \times 10^{18}$
