Answer questions a$-$c about the Bronsted acid$-$base reaction below using the identifying letters $A-D$ below each structure. The

pKa's for the acids of interest are: acetone $(p{K}_a=19\mathrm{.}3),$ and ethylammonium ion $(p{K}_a=10\mathrm{.}8).$

a$)$ The stronger acid is

b$)$ Its conjugate base is

c$)$ The species that predominate at equilibrium are $($two letters, e$.$g$.$ ac$)$

$7$ more group attempts remaining