What purpose do colons serve in a sentence or phrase?

Read the sentence from susan b. anthony's "on women's right to vote." hence, every discrimination against women in the constitutions and laws of the several states is today null and void, precisely as is every one against negroes. in this sentence, the author's tone is best described as

What are your educational and professional goals and how will this program you achieve your goals?

4. how does the speaker's comparison of sinners to aninsect (paragraph 7) contribute to the central idea of thetext? o a it emphasizes the negative view god has ofsinners and how inconsequential they are to him.o b it stresses the connection that exists between allof god's creatures, whether they be human orinsect.o c it suggests that sinners can change for the better,as insects are known to go throughtransformations.o d it portrays sinners as being just as prevalentaround the earth as the wide variety of insects.