20 !
read these sentences:

all members of abbeville choir were thrilled by the appointment of howard stein, the choir will be performing the difficult mendelssohn's elijah at the spring concert and need stein's leadership.

which descriptive phrases should be added to the reader understand why stein's leadership would be useful the choir?
a. an experienced conductor, as choirmaster.
b. a well-known publicist, as public relations manager.
c. an award-winning artist, as set designer.
d. a master composer, as program planner.
i think it is a, am i right? explain

the support that the author, uses in the article facing our fears is a): a definition of the part of the brain called the amygdala.

he takes neuroscientist joseph ledoux's words by telling that by falling to distinguish between evolutionary old systems located in the amygdala and newer systems, centered in the prefrontal cortex, doctors have conflated non conscious threat circuits in the brain with circuits that underlie the conscious experience of fear. that, the author says, "leads ledoux to the jarring conclusion that the amygdala, a decades-old centerpiece of the brain's fear circuit, does not underlie the conscious feeling of fear".

despite this, the author points out in the article that that is a controversial notion and that evidence, in animal and humans, supports the idea that core emotions can exist outside of conscious awareness.