The total inductance of two coupled coils in the ‘series aiding’ and ‘series opposing’ connections are 1.4 × 10-3 Henry and 0.6 × 10-3 Henry, respectively. The value of mutual inductance will be:

• A. 0.8 × 10-3 Henry
• B. 10-3 Henry
• C. 0.2 × 10-3 Henry
• D. 0.5 × 10-3 Henry