Hello, sorry this is a little late!
I believe the correct answer to your question would best be Option A.
I can confirm this is 100% correct!
Hope this helps and have a great rest of your day :)
Let the angle of elevation be θ.
We have a right angled triangle with an opposite of 300.5 ft. (306 - 5.5) and an adjacent of 400 ft. Recalling SOH CAH TOA, tanθ = O/A.
tan(θ) = 300.5/400.
θ = tan^-1(300.5/400).
θ = 36.9°.
Since it is at least 3 means that the club must bring 3 or more ideas so x>=3 which is choice d
