Question

Seven books P, Q, R, S, T, U are place side by side. R, Q and T have blue covers and other books have red covers. Only S and U are new books and the rest are old. P, R and S are law reports; the rest are Gazetteers. Books of old Gazetteers with blue covers are

A Q and R
B Q and U
C Q and T
D T and U
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