$\RAA$ of prompt $\Dzero$, $\Dplus$ and $\Dstar$ mesons (left-hand panels) and of prompt $\Ds$ mesons compared with the average $\RAA$ of the non-strange D-meson states available in each $\pt$ interval (right-hand panels) for the 0--10\%, 30--50\% and 60--80\% centrality classes. Statistical (bars), systematic (empty boxes), and normalisation (shaded box around unity) uncertainties are shown. Filled markers are obtained with the pp rescaled reference, empty markers with the $\pt$-rescaled reference.