Final answer:
To collect customer feedback quickly, Mumtaz should use popular social media platforms like FB to engage with the audience and ask directly for their opinions on the new potato chip flavors.
Step-by-step explanation:
To gather customer feedback on the three new flavors of potato chips launched by the snack food company, Mumtaz should utilize the most popular and engaging social media platforms where their target audience is most active. Given the short timeframe of four days, platforms like FB is the most suitable due to their large user base and the rapid dissemination of information they offer. Conducting polls, posting engaging content about the new flavors, and directly asking for feedback in various posts or through stories are effective ways to get quick responses.
Additionally, using specific hashtags related to potato chips and the new flavors can help in increasing the reach of the posts and gather diverse customer opinions.