D3 Pie Chart arch mouse hover effect

How to do the pie chart arch color change on mouse hover ? Using .outerRadius(103 + 5); for hover transform, but how to apply some color change for arch? Please help

var arcOver = d3.arc()
.innerRadius(0)
.outerRadius(103 + 5);


https://jsfiddle.net/anoopsuda/1jnLda78/1/

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