3. PART A: What is the author's main purpose in the article?

O A to show how dangerous the teenage brain can be
due to its sensitivity towards rewards

O B to introduce a new perspective on the teenage brain
that shows its potential and flexibility

O C to give examples of different ways in which the
teenage brain can be observed

O D to prove how important positive parental influence
is for the teenage brain

Read the sentences. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level. lower points may exist. which choice correctly uses the subordinating conjunction “although” to combine the sentences? the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level, although lower points may exist. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level. although lower points may exist. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level although, lower points may exist. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level; although lower points may exist.