C beacuse Happy Times Club is a place and a place is a noun and that means that it should be capitalized. :)
I’m pretty sure it would be C
He might repeat it to emphasis it
In particular, nitrogen is lacking from the soil in which each of these plants grow. ... Carnivorous plants “eat” insects and small animals in order to supply the nutrients (including nitrogen, sulfur, and phosphorus) they need to survive. Hope this helps!!