[单选题]
A brick weighs 50.0 N, and measure*-alb6lcj/ hf uz 2x4ts 30.0 cm x 1ou8zgc/8kjlkm**e a 00.0 cm x 4.00 cm. What is the maximum pressure it can exert on a8 kam** ecjgzl0k8u/ o horizontal surface?
A. $1.25 \; Pa$
B. $12.5 \; Pa$
C. $1.25 \; kPa$
D. $12.5 \; kPa$