Slogan reason

A: Comparatively speaking, A's tone is a little hard, and the objective effect should be good, but there is no emotion, which makes people feel dry.

B: the language is appropriate, but it can't be used as a warning.

C: It not only reminds people to bypass the construction, but also uses appropriate and sincere language, and gently points out the inconvenience caused by the construction, so that passers-by will not be hurt or complained.

D: Like A, the effect is very good, but the tone is too strong.

(There are countless deaths and injuries of adopted brain cells ~ ~ ~ ~ ~