Lennox Industries Corporation declares a $$1\mathrm{.}75$ per share dividend to shareholders on record as of Tuesday. February &$.$ to be paid on Wednesday. February $23.$ Which of the

following statements is true?

The first day an investor with long shares could sell the stock by regular way settlement and keep the dividend is Monday, February $7$

The ex$-$date is Tuesday, February $8$ for cash settlement trades

The last day an investor could buy the stock by regular way settlement and receive the dividend is Monday, February $7$

The ex$-$date is Friday, February $4$ for regular$-$way trades