Answer:
My mother said that she will pay for my college studies
Step-by-step explanation:
Reported or Indirect speech is a way of expressing a statement or question without making direct quotes like direct speech.
Direct speech is a means of expressing or repeating the words of a speaker word for word.
Therefore, rewriting the direct speech My mother said, "I will pay for your college studies" as a reported speech would be My mother said that she will pay for my college studies.