According to the Corporate Governance Code of the Hong Kong Listing Rules, what must the board disclose about its internal controls?

ID : 1887

Long answer : The board must disclose the effectiveness and main features of its internal control systems. (Source: https://en-rules.hkex.com.hk/sites/default/files/net_file_store/HKEX4476_3828_VER36626.pdf)

Short answer : The effectiveness and main features.

answer 2 : Only IT controls.

answer 3 : Only financial controls.

answer 4 : Only operational controls.