Explanation:

- To determine the sum of the weights, multiply the average weight by the number of individuals.

- The average weight of the girls is given as 47 kg.

- There are 52 girls in total.

- Formula: Sum of weights = Average weight × Number of girls.

- Calculation: 47 kg × 52 = 2444 kg.

- Option 1: 2544 kg

This option is incorrect as multiplying correctly gives 2444 kg.

- Option 2: 2458 kg

This doesn't match with the calculated result.

- Option 3: 2454 kg

Also doesn't match the required calculation.

- Option 4: 2444 kg

This is the correct sum of weights.