a$)$ Describe in detail the J$-$month$/$K$-$month momentum strategy?

b$)$ Historically, for what values of J and K would this strategy have yielded high average returns?

c$)$ Give two variations on the J$-$month$/$K$-$month momentum strategy that perform even better.

d$)$ What risk adjustments have researchers performed on the returns of the J$-$month$/$K$-$month momentum strategy? For each risk adjustment you mention, does this strategy have superior performance after the risk adjustment?