Part a: which of the following best identifies the author’s main claim in the text?
a.
schools can use written materials about television to explore its place in today’s culture and to teach reading, writing, and thinking skills.

i know part a is a but i need part b which is:

part b: which detail from the text best supports the answer to part a?
a.
“the idea of television as a form of literature that should be taught in classrooms remains controversial.” ( paragraph 4)
b.
“together, these three changes ushered in the golden era of television, allowing tv shows to tell more complex stories.” ( paragraph 5)
c.
“when novels deal with similar themes, they are not visual. tv shows place those themes directly before the viewer.” ( paragraph 8)
d.
“using these written materials, television can be taught in schools without sacrificing reading and writing skills or exposing students to graphic images.” ( paragraph 18)