Use the graph to identify the points on the interval $a,b$ at which local and absolute extreme values occur.

List the $x-$values where local minima occur, if any. Select the correct choice and, if necessary, fill in the answer box to complete your choice.

Need to find the local minimum points occur at x$=,$ local maximum points occur at x$=,$ absolute minimum points occur at x$=,$ and absolute maximum points occur at x$=$