Concept:The word "superior" is an absolute adjective and does not have comparative or superlative forms.
Explanation:"Superior" already means "higher in rank, quality, or degree."
Therefore, it cannot be made stronger with "more", "most", or "very".
Expressions such as "more superior", "most superior", and "very superior" are grammatically incorrect.
Also, when comparing two things, we use the fixed phrase "superior to".
So the sentence should simply say: "The material used for sewing my dress is superior to yours."
Option A adds "most", which is wrong.
Option C adds "very", which is not used with this adjective.
Option D adds "more", which is also wrong.
Answer:B. superior