No advice, but I am in the literal exact same position. I also need these tips, but it is nice to know others are feeling this way. We have improved a lot and if we don't hit 170, so be it! You are right to say we should focus on the positives. We have worked hard, and everything will fall into place as it should!

I was stuck between C and E and I totally understand why E is correct, but why is C incorrect? I might be reading it wrong, but it basically says that an alternative hypothesis, the species energy hypothesis, is proven correct. Wouldn't this significantly weaken the rate-of-speciation hypothesis since another one is proven to be true?

Am I correct in assuming that answer choice D would still be the right answer choice if it said few instead of some?