Answer :
d.his ability to build a steam-powered textile mill from memory
Step-by-step explanation:
The textile technology had remained a secret that the British were not ready to divulge.
However Samuel Slater memorized the technology used to build the textile system of the British people and brought the information to the United States. He opened the first mill in 1790 based on the British model and it attributed largely to the American industrialization. As a result he was was called "Slater the traitor" by the British