To express the population of China, approximately 1,322,000,000, in scientific notation, we need to write it in the form of \( a \times 10^n \), where \( 1 \leq a < 10 \) and \( n \) is an integer.
The number 1,322,000,000 can be rewritten as:
1.322 × 1,000,000,000 = 1.322 × \( 10^9 \)
So, the correct answer is:
1.322 × \( 10^9 \)