Read the Paragraph and Then Select the Letter of the Correct

Read the paragraph and then select the letter of the correct answer for each of the questions that follow.
Use the following to answer questions :
(1) Without saying a word, people can communicate a confident attitude with different kinds of body language. (2) Lifting up the chin so that the head is held high can be one sign of confidence. (3) Maintaining direct eye contact during interactions with others is another way of indicating self-assurance. (4) Confident people also state their opinions forcefully and assertively. (5) But one thing they do not do is slouch; instead, they stand tall, with a straight spine and a chest pointing forward, not slumped forward. (6) Finally, people with confidence tend to stand with their weight distributed evenly on both legs rather than putting all of their weight on just one leg. (7) Just by positioning the head, torso, and legs in these ways makes a person feel more confident about himself or herself.
-Which sentence is the topic sentence of the paragraph?

A) sentence 1
B) sentence 2
C) sentence 6