If k and t are integers and k^2 – t^2 is an…

If k and t are integers and k^2 – t^2 is an odd integer, which of the following must be an even integer? I. k + t + 2 II. k^2 + 2kt + t^2 III. k^2 + t^2

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #9004