Answer:
It is an undifferentiated marketing
Explanation:
Under undifferentiated marketing strategy, seller is not focusing on any segment of the market as its target customers. This product is produced without having a particular segment of customer in mind i.e a one size fits all type of product.
This type of strategy is not sustainable and it is probably going to get stalk in the middle because according to Michael Porter, you can either compete using cost-leadership , differentiated or focused strategy.
As a producer of undifferentiated product, you are neither using cost-leadership strategy nor differentiated strategy.