Two blocks are connected by a light string passing over a pulley. The block with mass m₁ slides on the frictionless horizontal surface, while the block with mass m₂ hangs vertically (m₁ > m₂). The tension in the string is 

(a) Zero; 

(b) Less than m₂g;

(c) Equal to m₂g; 

(d) Greater than m₂g, but less than m₁g; 

(e) Equal to m₁ g; 

(f) Greater than m₁g.