Answer questions a$-$c about the Bronsted acid$-$base reaction below using the identifying letters A$-$D below each structure. A table of $p{K}_a$ values for various organic and inorganic acids can be found in the references section.

a$)$ The weaker acid is

b$)$ Its conjugate base is

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