Which of the two URL structures here has better optimization? Indicate A or B and explain why it is better in terms of SEO.

a$.$ https:$//$www$.$babyequipment.net$/$bedroomequipment$/$monitors$/$sound$-$and$-$motion$-$

monitors.html

b$.$ https:$//$www$.$babyequipment.net$/$product$75-$c$/$category$\_$id$=335$&sort.html