Answer:
B
Step-by-step explanation:
Exponent product rule: If bases are same, add the exponents.
[tex]a^{m}*a^{n}= a^{m+n}[/tex]
[tex](5x^{4}y^{2}z^{2}) *(3x^{4}y^{3}z^{5})=(5*3)x^{4+4}*y^{2+3}*z^{2+5}\\\\\\=15x^{8}y^{5}z^{7}[/tex]
