Identify subjects and verbs.
8. many men and women picked their teeth clean after meals
9. the stems of feathers or special tooth picks were employed for this.
10. brass or silver toothpicks were safer than animal-hair toothbrushes.
11. germs developed on animal bristles, leading to frequent infections.
12. there was no solution to this problem until the 1930s.
13. the discovery of nylon led to a big change in the toothbrush industry.
14. nylon was tough and resisted the growth of germs.
15. the first nylon-bristle brushes were sold in the united states in 1938.
16. unfortunately, they were very hard on gums.
17. soft gum tissue scratched and bled easily.
18. in the 1950s, a new, softer version of the nylon toothbrush was developed.
19. it cost five times as much as the older, harder brushes.
20. with this development, national dental care improved.

in other words

to put it differently

for one thing

as an illustration

in this case

for this reason

to put it another way

that is to say

with attention to

by all means

important to realize

another key point

first thing to remember

most compelling evidence

must be remembered

point often overlooked

to point out

on the positive side

on the negative side

with this in mind

notably

including

like

to be sure

namely

chiefly

truly

indeed

certainly

surely

markedly

such as

especially

explicitly

specifically

expressly

surprisingly

frequently

significantly

particularly

in fact

in general

in particular

in detail

for example

for instance

to demonstrate

to emphasize

to repeat

to clarify

to explain

to enumerate

peace, morning, sun glooming, sorrow, woe pardon’d, punished, more hence, talk, story. all of these three words have to do something with a depressed, regretful tone. woe is another word for misery, heartache, so all of these words are about unhappy feelings.

ok so it would be d because that would catch attention and make them what to read it.