The five$-$bolt connection shown must support an applied load of P $=260$ N$.$ The thickness of the axial member: $=1$ mm$.$ and the width $=18$ mmIf the ultimate shear stress in the bolts must be limited to $245$ MPa with F$.$O$.$S $=2\mathrm{.}2.$ And the ultimate normal stress in the axial member $=330$ MPa, with F$.$O$.$S $=2\mathrm{.}6,$ And the ultimate bearing stress in the axial member $=105$ MPa, F$.$O$.$S $=2\mathrm{.}2$ Determine the minimum bolt diameter that may be used in the connection.

$0\mathrm{.}77$ mm

$6\mathrm{.}47$ mm

$9\mathrm{.}85$ mm

$3\mathrm{.}72$ mm

$5\mathrm{.}32$ mm