Answer:
The first blank would be the option that says "a computer club"
The second blank would be the option that says "the local youth center"
Lastly, the third blank would be the very last option youd have, "their competitors"
You just need to break that big sentence into tine small ones. The first one might be a little confusing but the last two questions are directly taken from the big blob of words!
I hope this helped :)
