Explanation

60 women spin 48 kg of cotton in 8 hours.

First, find the total hours worked by 60 women: 60 women x 8 hours = 480 hours.

Now, find the total cotton spun per hour: 48 kg ÷ 480 hours = 0.1 kg/hour.

Since 30 women work 12 hours daily, find their total hours: 30 women x 12 hours = 360 hours.

Finally, find the total cotton spun by 30 women: 360 hours x 0.1 kg/hour = 36 kg.

So, the correct answer is: 36 kg