Answer:
The newspaper was written in 1800's style Czech.
Step-by-step explanation:
Patricia Hampl's "The Need To Say It" is the author's skillful and meticulous take on how language plays a barrier for a writer and the creative boundaries within which it bounds a person. This particular work is a form of memoir that Patricia writes, telling her story and also revealing how one can/ must tell their stories truthfully and after deep introspection and truth.
As given in the question, she states how her grandmother "lavished attention on her lodge newspaper which came once a month". Moreover, this paper "written in the quaint nineteenth-century Czech" was valuable to the grandmother "like a wedding cake saved from the feast". She explicitly stated that the newspaper was from the 1800s, which has now become more like "a fossil, still recognized but no longer [usable]".
Thus, the correct answer is the third option.