&$)(3$ Points$)$ Show how do you use the following bitmap indices to answer th following quer?

$\backslash$table$[[$Track$],[$Sven$,$Regien,$],[,,$M$],[,$W$,10],[4,$W$,$H$],[,$s$,],[,\frac{W}{W},$A$]]$

Region Index

$\backslash$table$[[$Rowhd$,$N$,$E$,$w$,],[1,1,0,0,0],[2,0,1,0,0],[3,0,0,0,1],[4,0,0,0,1],[5,0,1,0,0],[6,0,0,0,1],[7,0,0,0,1]]$

Rating Index

$\backslash$table$[[$Powid$,$H$,$M$,$L$],[4,1,0,0],[2,0,1,0],[3,0,0,1],[4,1,0,0],[5,0,0,1],[6,0,0,1],[7,1,0,0]]$

select cust

from Track

where region $="$W$"$ and rating$-"$L$"$