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

Q 2168101905.

Assertion : The spheres x^2 + y^2 + z^2 = 64 and x^2 + y^2 + z^2 - 12x + 4y- 6z + 48 = 0 touch externally.

Reason : The distance between centres of spheres is equal to the sum of their radii

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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