Read this excerpt from “A Four-Hundred-Year-Old Woman” and the dictionary definitions below and answer the question.

When even the forms of praise are so rudimentary, the writer knows she has an inexhaustible fictional population to enumerate. Perhaps even a mission.
Rudimentary [ru:də'mentəri] adj.1. an elementary or basic; 2. in the process of developing; 3. undeveloped 4. in the form of an embryo

What is the meaning of rudimentary as it is used in the excerpt?

A) definition 1
B) definition 2
C) definition 3
D) definition 4