Answer: 2, 4, 6
Step-by-step explanation:
Given statement: An arithmetic progression involves the addition of the same quantity to each number.
Here,

Thus, It does not involve the addition of the same quantity to each number.
Hence, It does not represent the arithmetic growth of agricultural production.
Here,

Thus, It does not involve the addition of the same quantity to each number.
Hence, It does not represent the arithmetic growth of agricultural production.
Here,

Thus, It does not involve the addition of the same quantity to each number.
Hence, It does not represent the arithmetic growth of agricultural production.
Here,

Thus, It involves the addition of the same quantity i.e. 2 to each number.
Hence, It might represents the arithmetic growth of agricultural production.