Read the passage below.

honesty is an important trait in any friendship. it lets the other person know that you respect them enough to be truthful. it may not always be easy, but it to avoid problems or hurt feelings that may arise when someone knows they have been deceived. in summary, it to create the trust that is needed to be truly close to someone.

the signal words “in summary” serve what purpose?

a. to show the proper order of the ideas listed
b. to show that one event likely caused another
c. to signal a final idea or concluding thought
d. to signal that more information lies ahead