[单选题]
An aluminum wire 2.0 m in length and 2 wa +j gd:*lo)37e7yw biydjr0.0 mm in dy-7 p5qm:p n o)xx,(qo+ichycf;q9t f iameter supports a 10.0-kg mass. What is the elongation of the wire? (y: mqof+qyth,;5p9on-xx 7ic)fp qc(The Young's modulus for an aluminum is $7.0 \times 10^{10} \; N/m^2$)
A. $0.11 \; mm$
B. $0.22 \; mm$
C. $0.33 \; mm$
D. $0.89 \; mm$
