How is the comma used as an interrupter in this sentence?

teflon®, a nonstick coating material, is a chemical cohesion.

1) appositive

2) direct address

3) parenthetical expression

4) summary

5) two adjectives before a noun

Which of the fallowing is true about plays

Read the excerpt from the common sense of bicycling: bicycling for ladies. the bicycle is capable of such high speed that there is a strong temptation to ride so fast as to cause over exertion or excessive perspiration. on the other hand some people ride too slow, causing a zigzag and uncertain movement. while exercising reasonable caution, be a fearless rider. when you come to a steep hill, if the road is clear, let it go as fast as it will. if you rid yourself of that ghost of fear, coasting is one of the greatest delights of cycling. which is the best paraphrase of the text?

Rev. simon hosack] entered fully into the feeling of suffering and sorrow which took possession of me when i discovered that a girl weighed less in the scale of being than a boy, and he praised my determination to prove the contrary. which best describes society’s view of boys’ and girls’ abilities during the period in which elizabeth cady stanton lived?