What name is given to the confluence where the Ping and Nan rivers join to form the Chao Phraya River?

• A Bang Pakong
• B Samut Prakan
• C Nakhon Sawan
• D Pak Nam Pho ✓

Pak Nam Pho is the confluence point in Nakhon Sawan province where the Ping and Nan rivers merge to create the Chao Phraya, Thailand's most important waterway.