Answer : 3. "Planned"
Explanation :

The most appropriate synonym for "deliberate" is "planned." "Deliberate" refers to something done consciously and intentionally, and "planned" reflects the idea of careful forethought and intentionality. The other options, such as "casual" (informal), "hasty" (done quickly without much thought), and "rushed" (done in a hurry), have different meanings and do not convey the sense of careful consideration associated with "deliberate."