Step 1: Understanding the question.
CIAM (Congrès Internationaux d'Architecture Moderne) was founded in 1928 and played a pivotal role in shaping modern architecture by gathering architects from all over the world.
Step 2: Analyzing the options.
(A) Commission for International Aeromodelling: This is not correct. CIAM was focused on architecture, not aeromodelling.
(B) Customer Identity Access Management: This is unrelated to CIAM, which is about architecture.
(C) Central Institution of Aviation Motors: This is incorrect as CIAM was not related to aviation motors.
(D) International Congresses of Modern Architecture: Correct — CIAM stands for International Congresses of Modern Architecture and was focused on advancing modern architecture globally.
Step 3: Conclusion.
The correct answer is (D) International Congresses of Modern Architecture, as CIAM was an important organization in the development of modern architecture.