Answer:
 lithium and chlorine 
potassium and oxygen
Explanation:
Ionic compound are chemical compound held by electrostatic forces known as ionic bonding. Ionic compound, their is transfer of electron. One atom of element lose electron while the other atom gain electron. The ions involve in bonding are known as cations and anions.
The cations loses electron to become positively charged while the anion receive electron to become negatively charged. An ionic compound possess an anion and a cations. The electronegativity difference between the atom that go into bonding is widely different.  
The best option is the bonding between lithium (cations) and chlorine(anions) and potassium(cations) and oxygen(anions).
The bonding is usually between a metal and a non metal.
Li + and  Cl- → LiCl
K+ and O2- → K2O
 
        
             
        
        
        
Answer:
e. Planning and budgeting purposes.
Explanation:
Sales variance analysis is used by managers for planning and budgeting purposes, as this analysis allows managers to better understand the company's sales scenario in a given period in relation to different variables such as budgeted quantity, quantity sold and amount of profit made.
Through analysis, greater control and strategic planning and future budgets are possible so that an organization remains profitable and competitive in the market.
 
        
             
        
        
        
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