Specificity and progression are ’things’ you should work on to improve your physical health. what should the word in italics be replaced with to make this
sentence more precise? (3 points)
acronyms
principles
muscles
exercises

Principles

Explanation:

"Specificity and progression" are two principles related to maintaining physical health. Therefore we can say that the word "principles" is the most suitable to replace the word "thing".

Also, "Specificity and progression" are neither exercises nor muscles. Nor are they acronyms, since an acronym is the word formed by joining letters or initial syllables of a group of words, pronounced as one word.

i'm pretty sure questions like these aren't allowd.   but, sure.   i can and talk : ))

answerbps;