Concept: ISBD stands for International Standard Bibliographic Description. It provides a standard structure for describing library materials.
Step 1: Understand the title and statement of responsibility area.
The first area of ISBD is the title and statement of responsibility area. It includes information directly related to the title and responsibility.
Step 2: Identify valid elements.
Title proper is included in this area.
\[
A = \text{Title Proper}
\]
Parallel title is also included because it is another form of the title in another language or script.
\[
C = \text{Parallel Title}
\]
Statement of responsibility is included because it tells who is responsible for the work.
\[
E = \text{Statement of Responsibility}
\]
Step 3: Reject wrong elements.
Series area is a separate ISBD area. Note area is also a separate area and does not belong to the title and statement of responsibility area.
Therefore, the correct set is:
\[
A,\ C,\ E
\]