Consider the following code segment for a class that models a fish:

public class Fish
{
private int age;
private double weight;
private boolean isAlive;
private Location location; // (x, y) location in a lake
...
}

Which of the following methods in the Fish class is the best candidate for being a instance method?

A. swim() // swim to a different location
B. eat() // fish eats
C. getLakeTemp() // get lake temperature
D. getAge() // returns age of fish
E. getWeight() // returns weight of fish