The given contingency table lists the cross tabulation of the number of business partnerships by industry and whether the partnership reported net income or net loss for the year $2014$ in a certain country.

Using the letters given in the table, find the number of partnerships in each of the following sets in parts $($a$)$ through $(d).$

$\backslash$table$[[,$Number of Partnerships$],[$Industry$,\backslash$table$[[$With Net$],[$Income $($A$)]],\backslash$table$[[$With Net$],[$Loss $($B$)]]],[$Construction $($C$),75,741,67,756],[$Manufacturing $($M$),24,622,42,579],[$Wholesale$,37,758,45,115],[$Trade $($W$),86,953,81,556],[$Retail Trade $($R$),,]]$

$($a$)BW$ contains $$ partnerships.

$($b$)RC$ contains $$ partnerships.

$($c$)C$A contains $$ partnerships.

$($d$)R^{\text{'}}$ contains $$ partnerships.