A galvanometer of resistance 100 when connected in series with 400 measures a voltage

A galvanometer of resistance 100 Ω when connected in series with 400 Ω measures a voltage of upto 10 V. The value of resistance required to convert the galvanometer into ammeter to read upto 10 A is x × 10^–2 Ω. The value of x is : 

(1) 2 

(2) 800 

(3) 20 

(4) 200                                              (JEE-2024)