### Question Asked by a Student from EXXAMM.com Team

Q 2117180980.

Assertion : The direction ratios of the line joining origin and point (x, y, z) must be x,y, z.

Reason : If P (x, y, z) is a point in space and OP = r, then direction cosines of OP  are x/r ,y/r, z/r.

A Both A and R individually true and R is the correct explanation of A
B Both A and R are individually true but R is not the correct explanation of A
C A is true but R is false
D A is false but R is true

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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