An Aluminum Beam $(E=72 \mathrm{GPa})$ With a Square Cross Section and Span Length L =

An aluminum beam $(E=72 \mathrm{GPa})$ with a square cross section and span length L = 2.5 m is subjected to uniform load $q=1.5 \mathrm{kN} / \mathrm{m}$ . The
Allowable bending stress is 60 MPa. The maximum deflection of the beam
Is approximately: (A) $10 \mathrm{~mm}$
(B) $16 \mathrm{~mm}$
(C) $22 \mathrm{~mm}$
(D) $26 \mathrm{~mm}$