A uniform live load of \(0.2 \mathrm{k} / \mathrm{ft}\) and a single concentrated live force of \(4 \mathrm{k}\) are to be placed on the floor slabs. Determine

(a) the maximum live vertical reaction at the support \(D\),

(b) the maximum shear in panel \(D E\) of the girder, and

(c) the maximum positive moment at \(E\). Assume \(D\) is a roller and \(G\) is a pin.

-10 ft + 10 ft- -10 ft- -10 ft + 10 ft + 10 ft- B C D F E G