How much money could have been saved by the man

A．John stopped smoking while working.
B．John smoked while taking a rest.
C．John restarted his work after his failure.
D．John made great efforts to begin his work again.

A．Neither of them has a favorable opinion of the politicians.
B．The man doesn’t like visiting gardens with politicians.
C．Both agree it’s time to cut down taxes immediately.
D．The man think taxes are all right, but the woman doesn’t.