Under IFRS, how can a company classify interest paid, and what flexibility does this provide compared to GAAP?

Interest paid can be classified as either operating or financing activity, providing more flexibility.

Interest paid can be classified as an investing activity, which is not allowed under GAAP standards.

Interest paid can only be classified as an operating activity, similar to GAAP requirements.

Interest paid must be classified as financing activity, unlike GAAP operating classification requirements.