What is your stance on the relationship between researching$/$choosing market segments and the marketing mix $(4$Ps$)?$

Question $3$ options:

Researching market segments before choosing which ones to target is not always necessary for building a successful product in which your marketing mix $($product$,$ price, place, promotion$)$ are integrated and aligned with the target segments and their needs.

You can convince your target segment$($s$)$ to accept and buy your product by persuasive marketing, hence offering a product that fits their needs $($through researching market segments prior to choosing a target segment$)$ is not crucial.

I$\text{'}$m just here for the attendance points.

Intensive knowledge of your targeted market segment$($s$)($through prior research$)$ is the key driver of the entire marketing mix.