Concept: Colon Classification arranges main classes in a systematic sequence. To answer such questions, we arrange subjects according to their order in the CC schedule.
Step 1: Identify Zoology and Medicine.
Zoology appears before Medicine in the CC sequence.
\[
C \rightarrow E
\]
Step 2: Identify Literature.
Literature comes after Medicine in the given subject sequence.
\[
E \rightarrow B
\]
Step 3: Identify Education and History.
Education comes before History in the CC schedule.
\[
D \rightarrow A
\]
Step 4: Write the final sequence.
Thus, the ascending order is:
\[
C,\ E,\ B,\ D,\ A
\]