Question: What is the primary goal of optimizing Scalable Polyphony-MIDI (SP-MIDI) for wireless devices in the context of SMS, as per development guidelines?
Option 1: Enhance Audio Quality for Real-time Streaming
Option 2: Increase Compatibility with Older Handsets
Option 3: Minimize Overall Size of Melodies for Efficient Transmission
Option 4: Support Advanced Music Composition Features
Explanation: Optimizing SP-MIDI for wireless devices, particularly in the context of SMS which has strict size limitations, focuses on efficient use of resources. Minimizing the overall size of a melody directly impacts the success of transmitting these files over wireless networks, where bandwidth and message size limits are concerns. This approach ensures that polyphonic ringtones and melodies can be effectively shared via SMS without significant degradation or failure due to size constraints.