Left: $\RAA$ of charged pions ($\pt< 16 \rm{GeV}/c$) and of charged particles ($\pt>16 \rm{GeV}/c$) compared with model calculations that compute also the D-meson $\RAA$. Right: ratio of the $\RAA$ of prompt D mesons (average of $\rm D^0$, $\rm D^+$ and $\rm D^{*+}$ as shown in Fig.11) and the $\RAA$ of charged pions (for $\pt< 20 \rm{GeV}/c$) or charged particles (for $\pt>20 \rm{GeV}/c$), compared with the same model calculations shown in the left panel.