Final answer:
The correct answer to the analogy 'THINK is to BRAIN' as '__?__ is to LUNGS' is 'B) BREATHE' because breathing is the primary function of the lungs, similar to how thinking is a central function of the brain.
Step-by-step explanation:
When considering the analogy THINK is to BRAIN as something is to LUNGS, we are comparing the function of an organ with its primary activity. The brain is principally involved in the process of thinking, a conscious activity. Similarly, the lungs are primarily responsible for breathing, which involves both involuntary and voluntary actions, such as when swimming or singing, and during conscious alterations in breath while performing activities that require breath control.
The correct answer to the analogy is B) BREATHE. This is because breathing is the fundamental process carried out by the lungs, just as thinking is a central function of the brain. Running, sneezing, pondering, or choking are all either too specific, inaccurate, or not primarily associated with the lungs in the direct way that breathing is.