Explanation:
Butane is a hydrocarbon with four carbon atoms and ten hydrogen atoms. The stability of its conformation is determined by the arrangement of its atoms.

Conformation of n-butane:
The conformation of n-butane can be represented as a chain of four carbon atoms. Each carbon atom is bonded to three hydrogen atoms and one neighboring carbon atom. The carbon atoms are labeled as C1, C2, C3, and C4.

Staggered conformation:
In the staggered conformation, the carbon atoms and hydrogen atoms are arranged in a way that minimizes steric hindrance and maximizes stability. There are two possible staggered conformations of n-butane:
- Staggered-anti conformation: In this conformation, the C-C bonds are oriented in a way that the hydrogen atoms on the neighboring carbon atoms are as far apart as possible. This results in a stable conformation with minimal steric hindrance.
- Staggered-gauche conformation: In this conformation, the C-C bonds are oriented in a way that the hydrogen atoms on the neighboring carbon atoms are closer to each other. This results in a slightly less stable conformation with higher steric hindrance.

Eclipsed conformation:
In the eclipsed conformation, the carbon atoms and hydrogen atoms are arranged in a way that the hydrogen atoms on the neighboring carbon atoms are directly aligned. This results in maximum steric hindrance and makes the conformation less stable.

Skew boat conformation:
The skew boat conformation is a more complex conformation of n-butane where the carbon atoms and hydrogen atoms are arranged in a way that minimizes steric hindrance. However, it is less stable compared to the staggered conformation.

Most stable conformation:
Among the given options, the most stable conformation of n-butane is the staggered-anti conformation. This conformation minimizes steric hindrance between the hydrogen atoms on neighboring carbon atoms, resulting in a more stable arrangement.