Step 1: Understanding the Concept:
The Garden City movement aimed to combine the best aspects of both town and country living.
Step 2: Detailed Explanation:
Sir Ebenezer Howard published "Garden Cities of To-morrow" in 1902.
The plan envisioned a central city surrounded by self-sufficient satellite towns connected by greenbelts.
(C) Patrick Geddes focused on "Regional Surveys."
(D) Frank Lloyd Wright proposed "Broadacre City."
Step 3: Final Answer:
The pioneer was Ebenezer Howard.