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A is corrent. First Plymouth Bank does not have primary liability unless it accepts (certifies) the check. This is true because although the drawer, Titan, has ordered First Plymouth Bank to pay this check, the bank is not obligated to the payee, Brass, to follow that order.
B is incorrect because the bank does not have primary liability unless it accepts or certifies the check.
C is incorrect because First Plymouth does not have primary liability unless it accepts or certifies the check. This did not take place.
D is incorrect because Titan, the drawer, has secondary liability and is liable if the drawee fails to pay.