Mom , who has been our ward 's activity chairperson for the last while , dreamed up a pretty good activity last year - a pinewood derby . Now if you are familiar with Cub Scouts , you know this is usually something that is done by 7 - 10 year old boys ( and in the background , their fathers ) . However , Mom 's genius idea was to have families in the ward make a car and then race them . Last year my family just sat on the sidelines but for this year 's iteration of the activity we were ready .

Q with options: Give answer the following question using evidence from the above passage: What did the family likely do this year that made the author say " they were ready " ?
Possible answers:
[I] Their family build a car together and entered it in the wards race .
[II] None of the above choices .
[III] The family had their very own pinewood derby within their family .
[IV] The family created their own cub scout troop for families in that ward .
[I]