Read this excerpt from Narrative of the Life of Frederick Douglass.

We were not regularly allowanced. Our food was coarse corn meal boiled. This was called MUSH. It was put into a large wooden tray or trough, and set down upon the ground. The children were then called, like so many pigs, and like so many pigs they would come and devour the mush; some with oyster-shells, others with pieces of shingle, some with naked hands, and none with spoons. He that ate fastest got most; he that was strongest secured the best place; and few left the trough satisfied.

Which detail from the passage is evidence that the slave children were not fed enough?

Our food was coarse corn meal boiled.
It was put into a large wooden tray or trough, and set down upon the ground.
...and like so many pigs they would come and devour the mush[.]
...he that was strongest secured the best place; and few left the trough satisfied.