Direction: Fill in the gap with the correct option in each of the question from. \[\mathbf{DEF},\mathbf{DE}{{\mathbf{F}}_{\mathbf{2}}},\mathbf{D}{{\mathbf{E}}_{\mathbf{2}}}{{\mathbf{F}}_{\mathbf{2}}}................\text{ }{{\mathbf{D}}_{\mathbf{2}}}{{\mathbf{E}}_{\mathbf{2}}}{{\mathbf{F}}_{3}}\]

• A. \[DE{{F}_{3}}\]
• B. \[{{D}_{3}}E{{F}_{3}}\]
• C. \[{{D}_{2}}{{E}_{3}}F\]
• D. \[{{D}_{2}}{{E}_{2}}{{F}_{2}}\]
• E. None of these