Correct Answer: 16,000

Solution : Let $p$ denote the production for Company 2.
In the year 2012,
The production was 30,000 units.
The ratio of production to sales = $\frac{p}{30000}$ = 0.75
⇒ The sales of Company 2 in the year 2012 = $\frac{30000}{0.75}$ = 40,000
Given that sales in 2012 were equal to sales in 2013.
In the year 2013,
The sales were 40,000 units.
The ratio of production to sales = $\frac{p}{40000}$ = 0.4
The production of Company 2 in the year 2013 = 0.4 × 40000 = 16,000
⇒ The production of Company 2 in the year 2013 = 16,000 units
Hence, the correct answer is 16,000.