Fill in the blanks with the most appropriate option.'W' is very reactive metal, reacts vigorously with oxygen and water therefore, stored in ___(1)___.'X' is non-metal, soft and dull and forms ___(2)___ oxides with oxygen.'Y' is very reactive ___(3)___, catches fire if exposed to air, therefore, stored in water.'Z' does not react with dilute hydrochloric acid even on heating but it reacts with sulphuric acid. When it is exposed to moist air for long, it acquires a dull ___(4)___ coating.

• A. 1 -Water, 2-basic, 3-metal, 4-reddish brown
• B. 1-Kerosene, 2-acidic, 3-metal, 4-reddish brown
• C. 1-Kerosene, 2-acidic, 3-non-metal, 4-green
• D. 1-Water, 2-basic, 3-non-metai, 4-green