MHT CET Physics question

The e.m.f. E of the battery is balanced by p.d. across 75 cm of a potentiometer wire. For a standard cell of e. m. f. 1.02 V, the balancing length is 50 cm. The value of E is

• (A)0.68 V
• (B)1.24 V
• (C)1.53 VCorrect
• (D)1.08 V