The table shows characteristics of four different sport skills.
| Sport Skill | Environment | Pacing | Beginning and End |
| W | Stable | Self-determined | Clear start and finish |
| X | Changing | External factors | Ongoing with no clear endpoints |
| Y | Changing | Self-determined | Series of connected movements |
| Z | Stable | External factors | Clear start and finish |
Which sport skill would BEST exemplify classification W?
- Returning a serve in tennis
- Rugby lineout throw
- Free throw in basketball
- Freestyle swimming in a race