The Preamble of the US Constitution reads: We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

Which option best explains the significance of breaking capitalization rules for common nouns such as "Tranquility" and "Posterity"?

a Capitalization rules have changed since this document was written
b Common nouns become verbs when capitalized
c Capitalizing such words stresses the importance of the words, drawing extra attention
d There is no significance, it is poor grammar