If you think Russell 2000 will go up 40% by end of year, what call option would you buy?

I believe we're just starting in the rotation into small caps, and that Tom Lee is right that there's going to be a 30-40% gains in Russell 2000 (IWM) by end of year in 10 weeks. Lee thinks the economy is going to slow down and that “inflation will drop like a rock.”

I know that might be controversial but that's not the part I'm looking to discuss.

Assuming Russell 2000 will go up 40% by end of year in 10 weeks, what kind of call option would you buy here? I've sold a lot of covered calls and puts for small gains, but never bought calls before, so was wondering what the play with (like for example how much into the money would you go?)

• Thank you /u/C63SAMG911 for catching my mistake.