Which is a thesis statement?

Question

a. The following essay describes how popular horror novelist Stephen King, author of Carrie, Misery, and The Shining, built a successful career as a full-time author.

b. Stephen King is the world's most renowned horror author thanks to his impressive literary output, many awards, and the numerous film adaptations of his work.

Answer 1

b. Stephen King is the world's most renowned horror author thanks to his impressive literary output, many awards, and the numerous film adaptations of his work.