what is most innapropiate about this excerpt from a speech trying to persuade the members of the planning commission to support the building of a new sports complex?

The correct answer is A. the style is too informal for the audience and situation.

This person's audience are the members of the planning commission to support the building of a new sports complex. This means that the tone should be very professional, and not like this - informal and laid-back. This person is probably looking for an investment in his project, so he needs to be more professional about his intentions, because this informal tone doesn't suit the situation he is in.