Помогите, нужно избрать which/that итд Use which and that to refer

Помогите, необходимо избрать which/that итд

Use which and that to refer to things or ideas.
e.g. Its the programme which/that stars Katie Holmes.
Use who and that to refer to people.
e.g. Shes the actress who/that married Tom Cruise.
Use relative pronouns to link pieces of information about a person or thing.
e.g. Marie Curie was a scientist. She discovered radium. = Marie Curie was the scientist who discovered radium.
The information after the relative pronoun often defines the subject.
e.g. A search engine is a programme that finds information.
e.g. A newsreader is a person who presents news on the TV or radio.