If we are solving a 0-1 integer programming problem, the constraint x1 ? x2 is a ________ constraint

George smith who owns his property fee simple grants a three year lease to tom green during the second year of the lease George sells the property to Ned Gray what happens to the lease when the sale closes

a) property cannot be sold and title transferred to a new owner when a lease is in effect b) it must be negotiated between gray and Mr Green the leasee c)the lease remains in effect with Mr gray and Mr green d) it terminates

Which sentence is preferable?

A) Everyone did his work quietly. B) Each person did their work quietly. C) Everyone did their work quietly. D) Everyone worked quietly.