[单选题]
An aluminum rod 17.4 * tz)fnyj:ofgn+.lt .bqk xq5)/.xrj dy.ra 5cm long at $20 \; ^{\circ}C$ is heated to $100 \; ^{\circ}C$. What is its new length? Aluminum has a linear expansion coefficient of $25 \times 10^{-6} \; ^{\circ}C^{-1}$.
A. $17.435 \; cm$
B. $17.365 \; cm$
C. $0.348 \; cm$
D. $0.0348 \; cm$
