How many known moons does Neptune have?

Neptune has 14 known moons. The discovery and study of Neptune's moons reveal a variety of sizes and compositions, each contributing to our understanding of the planet's gravitational influence in its vicinity. Among these moons, Triton is the largest and most notable, possessing unique retrograde orbit characteristics and exhibiting geologic activity, which provides insight into past and current processes on the moon.

In context, the other choices present either an undercount or an overcount of Neptune's moons. For example, stating that Neptune has 27 moons significantly exceeds the current known count and does not reflect scientific consensus. Additionally, saying there are 13 or 11 moons also falls short of the actual number identified through observation and study, highlighting the critical need for accurate and current astronomical data. Therefore, recognizing the correct total as 14 is crucial for an accurate understanding of Neptune's satellite system.