Answer:
an enzyme produced chiefly by certain bacteria, having the property of cleaving DNA molecules at or near a specific sequence of bases.
Give us Choices, but I’m guessing it’s limiting factor
A
Why?:
because i was asking myself what else would make a abyssal plain? and i decided it was a, i WAS gonna say D but i thought really hard about it (plz mark me brain list if it's right is not it's okay and i hope i'm right!) :3