Respuesta :
Answer: First option is correct.
Step-by-step explanation:
Since we have given that
[tex]16s^3t,40s^5\ and\ 68t^2[/tex]
First we write the factors of all of these numbers:
Factors of [tex]16s^3t[/tex] is given by
[tex]4\times 4\times s\times s\times s\times t[/tex]
Factors of [tex]40s^5[/tex] is given by
[tex]2\times 2\times 2\times 5\times s\times s\times s\times s\times s[/tex]
Factors of [tex]68t^2[/tex] is given by
[tex]17\times 2\times 2\times t\times t[/tex]
So, GCF ( Greatest common factor) will be
[tex]2\times 2=4[/tex]
Hence, First option is correct.