What is the priority of a null node?

(a) 1

(b) 0

(c) random number

(d) infinity

My doubt is from Binary Trees in division Binary Trees of Data Structures & Algorithms I

I got this question in an online quiz.

What is the priority of a null node?

(a) 1

(b) 0

(c) random number

(d) infinity

My doubt is from Binary Trees in division Binary Trees of Data Structures & Algorithms I

I got this question in an online quiz.