Helllo! I have to solve this riddle. Apparently the roman numerals tell exactly where to find the correct words. They tell which row, and possibly the letters to look at and we were advised not to look at the words as a whole. There is one word in each riddle that need to be put together. Not sure how to do this.

Silverpoint is a. a technique using the blackish residue of impure carbon obtained by removing water from animal and vegetation substances. b. a technique involving the use of a metal point, and a thin silver wire, popular in the 14th and 15th centuries. c. a printmaking technique born from crayon manner that imitates the appearance of chalk lines. d. a technique used since the 16th century involving a stick filled with either colored or black graphite, a heated mixture of carbon and clay