The coordinative conjunction presented in the sentence is the word "or."
The conjunction "or" connects the clauses "tape measure" and "flexible ruler" which have coordinated functions within the sentence. The function of these two terms is to present options of measurement methods, for this reason, the conjunction presented between the two terms is called coordinate conjunction.
In addition, the conjunction has the function of establishing fluidity in reading, allowing greater comfort and understanding of the sentence.
Learn more about conjunctions:
https://brainly.com/question/8094735
#SPJ1