Which of the following is an undesirable tone for business writing?

A) Friendly
B) Stiff
C) Confident
D) Polite

Undesirable Tone

A manner of communication that may be perceived as inappropriate, negative, or counterproductive to the intended message.

Stiff

Often describes a lack of flexibility or easiness in movement, attitude, or in the context of writing, it can refer to a formal or overly formal tone.

Friendly

Exhibiting warmth, kindness, and approachability in interactions with others.