Q. Which of the following statements about natural ice formations are correct?

1. The A23a is the world's largest iceberg, located in the Weddell Sea.
2. The B-15 iceberg was originally the largest iceberg recorded after breaking off the Ross Ice Shelf in 2000.
3. The Pine Island Glacier Iceberg B-31 calved from Antarctica in 2013 and is notable for its size.

Select the correct option from the codes given below:
Answer: 1, 2, & 3
Notes: All three statements are correct. The A23a is indeed the largest iceberg located in the Weddell Sea, covering approximately 4,250 square kilometers. The B-15 iceberg broke off the Ross Ice Shelf in 2000 and was the largest ever recorded at the time. The Pine Island Glacier Iceberg B-31 calved from Antarctica's Pine Island Glacier in 2013 and is notable for its size. This comprehensive understanding of natural ice formations validates the correctness of all three statements.