[单选题]
An ideal gas occupies 300 L at an absolute prbre 5hz,*c;r(-kw gh dessure of 7 ze6+hh.ld ym,z7r xuhsv7 *llqn.-k400 kPa. Find the absolute pressure if the +7k vhlzeh,xdlzq*nl- y m6sh 7r u..7volume changes to 850 L and the temperature remains constant.
A. $140 \; kPa$
B. $640 \; kPa$
C. $850 \; kPa$
D. $1140 \; kPa$
