The following Gantt chart was generated in ProjectLibre using the information about "Career Day" project. If the Gantt chart is hard to read, try zoom$-$in in your web browser.

Which one of the following is NOT correct about this Gantt chart?

Graduate assistant is assigned to four different activities at the beginning of the project and may need a better scheduling.

If the program manager finish "contact organizations" within $70$ days instead of $75$ days, this project will be completed $5$ days earlier than the current schedule.

No work is assigned to secretary in the middle of the project period for over three months.

If graduate assistant starts "organize refreshments" $35$ days later and "send invitations" $45$ days later than the current schedule, it will resolve the resource overload problem somehow at the beginning, but it will make the project complete later than the current schedule.