$($b$)$ Based on the information provided in Table Q$2($a$),$ find the annual energy consumption breakdown in MJ$/$annum for air$-$conditioning installation, lighting installation, lift and escalator installation and others.

$($correct the answers to $3$ significant figures$)$

$(8$ marks$)$

$($c$)$ Based on the information provided in Table Q$2($a$),$ propose and briefly describe one energy management opportunity for each installation $($i$.$e$.$ air$-$conditioning installation, lighting installation and lift and escalator installation$)$ in at least category $2$ level with an estimation on annual energy saving in kWh $.($correct the answers to integer$)$

$(9$ marks$)$

Table Q$2($a$).$ Data for questions $2($b$)$ and $2($c$)$

Please no MATLAB or any programming.