Consider the following student relation.

Student relation has Name, Subject1_Marks, and Subject2_Marks attributes.

Name	Subject1_Marks	Subject2_Marks
A	10	5
B	Null	10
C	20	15
D	Null	20
E	30	Null
F	Null	25

Query1:

Select count (*)

From student;

Query2:

Select count (10)

From student;

Query1 prints the Q1 and Query2 prints Q2. Which of the following condition is true?