I believe D makes the most sense :)
Answer:
Marcus forgot to set the timer, so the food was burnt.
The Harlem Renaissance was an intellectual revival of African American art and literature
In the chapter 36 Huck and Tom try to set free Jim, who was imprisoned, they start digging with their case knives, Huck suggest to use a pick and a shovel, and after a while Tom agrees due to they have no success with the knives, however Tom only accepts if they pretend that the pick and the shovel are case knives. This shows that Huck is more mature and shows again Tom impracticality and self-indulgent.