A METAR for the planned small UAS operation site reports '4SM BR HZ'. The remote PIC decodes BR as mist and HZ as haze, indicating reduced horizontal visibility. Who holds the final authority to determine if the operation can be safely conducted while maintaining visual line of sight (VLOS)?

Under 14 CFR part 107, who has the final authority and responsibility for the operation of a small unmanned aircraft system?

You are the remote pilot in command (PIC) of a small unmanned aircraft planning an operation within visual line of sight (VLOS). The current METAR for the operating area is: KXYZ 121745Z AUTO 00000KT 1SM BR OVC002 15/15 A3000 RMK AO2. Pursuant to 14 CFR part 107, ultimate responsibility for the small unmanned aircraft operation rests with which person?