Do calculations to check whether the timber studs in the wall along gridline A$,$ with nominal section size $150$mm x $50$mm $($these are rough sawn dimensions and once dried, assume section size is $140$mm x $45$mm$)$ are able to sustain a ULS compression load due to $1\mathrm{.}2$G$+1\mathrm{.}5$Q of N$*=5$kN$.$ Assume that the timber is SG$8$ and note that both the section strength and member buckling needs to be checked $($i$.$e$.$ do the checks as per Chapter $3$ of reader$).$ Report the critical $($maximum$)$ ratio of axial force demand to capacity. For the column end restraint conditions, treat as $$studs in light framing$($refer Table $3\mathrm{.}1$ of reader$)=$g$13=0\mathrm{.}9$

$2$a$)$ What is the ratio of axial force demand to capacity, considering major$-$axis buckling?

$2$b$)$ What is the ratio of axial force demand to capacity, considering minor$-$axis buckling? $[\%]$

$2$c$)$ What is the critical ratio of axial force demand to capacity? $[\%]$