$($ii$)$ If the angle between the fusion faces between $60$ and $90,$ then ratio of throat thickness to effective throat thickness would be

$($a$)0\mathrm{.}70$

$($b$)145$

$($c$)0\mathrm{.}65$

$($d$)1\mathrm{.}25$

$($iii$)$ Permissible bending stress in compression for laterally supported beams for Plastic and Compact Section shall not exceed

$($a$)0\mathrm{.}60fy$

$($b$)0\mathrm{.}66fy$

$($c$)0\mathrm{.}75fy$

$($d$)0\mathrm{.}45fy$