John arrived late for the baseball game because he had to________ for his mom in the morning to the grocery store and the post office. A: walk errand B: run errand C: walk errands D: run errands

Why is the man unable to help the woman A: He is on his way to the accounting department. B: He has to complete some data entry. C: He is running an errand for Mr. Washington. D: He has to trim down some articles.