The project on time . a) was not completed
b) was not completing by them
c) not completed
d) not complete by the

a

Explanation:

that makes more sense than all other answers

idk

explanation:

the direction of the magnetic field produced by an electric current will change when the direction of the electric current changes. for example : if a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).