In this question, we have a reaction between two compounds, Sodium sulfide and Hydrochloric acid. This reaction will have the following chemical formulas:
Na2S (aq) + 2 HCl (aq) --> H2S (g) + 2 NaCl (aq)
This is the complete and balanced reaction between Sodium sulfide and Hydrochloric acid, the correct answer will be the 1st option