After each of the following sentences, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for each sentence.
Ebrima's stepmothers keeps his nose to the grindstone. This means that Ebrima's stepmother

• A.makes Ebrima grind things all the time
• B.makes Ebrima work all the time
• C.keeps her hand on his nose
• D.forces him to grind stones