Choose the sentence that contains an error.
A.
Martin will represent his company in the seminar, and his grandparents will be proud of him.
B.
The winning team lifted the trophy and ran around the stadium, with wide smiles on their faces.
C.
My dad's fitness regime includes walking a mile followed by climbing the stairs every day.
D.
Alex caught the ball and was throwing it to Ronnie as he was closer to the net.