A recently launched astrology website has started reaching out to its subscribers through daily Astro updates via email. Five email lists are being used for this, which were generated through different offline and online activities. The following data was obtained after running the day 1 email campaign for each of the lists. Analyze the given data and answer the questions given below.

Serial No. Email List Sent Delivered Open Rate Hard Bounces Soft Bounces Unsubscribed 1 List 1 10,000 9,690 18% 285 25 7 2 List 2 10,000 9,174 26% 789 37 3 3 List 3 10,000 9,034 23% 890 73 5 4 List 4 10,000 9,319 19% 573 36 16 5 List 5 10,000 9,729 13% 230 41 20

Q.1) Managing email lists

Which of the email list has the most invalid users? Give reason.