we all turned around to see the master standing in the doorway. his big body filled it. he was dressed for traveling, with a long coat that almost reached his feet and boots covered with red dust. in his left hand he held a sack, and his right hand held the arm of a boy in an iron grip.

—iqbal,
francesco d’adamo

which detail in the passage supports the inference that the master is harsh with the children?

“he was dressed for traveling.”
“his big body filled it.”
“in his left hand he held a sack.”
“his right hand held the arm of a boy in an iron grip.”