The occurrence of the same letter or sound closely connected words
A widely accepted way of thinking or behaving is a convention.
It denotes set of generally accepted standards and norms and a way in which something is usually done. Example for convention is shaking hands when greeting someone. Controversial on the other hand is something causing people to have opposing ways.
The answer is
A.) It’s connotation would give the sentence a negative tone.
Cheap is often associated with badly made products. When people hear this the assume the toys are of bad quality.