Entity Z is involved in the business of merchandising. There are three strategic investors A$,$ B$,$ and C holding shares in entity Z$,$ while all other shareholders are referred

to as 'other investors' within entity Z$.$ displayed in the following table.

$\backslash$table$[[,$Number of shares owned$],[$Investor A$,30,000],[$Investor B$,20,000],[$Investor C$,20,000],[$Other investors,$30,000]]$

Different situations may arise for the entity Z:

i$)$ Investor B receives $10,000$ convertible bonds, exercisable in year $5,$ which would

allow the conversion into $80,000$ ordinary shares.

ii$)$ Investor C is granted $10,000$ call options, currently exercisable, enabling the

acquisition of $80,000$ ordinary shares at a strike price of $$10,$ while the market

price of entity Z$$s ordinary shares is $$20.$

iii$)$ Investor A holds decision$-$making authority over general administrative and

maintenance activities for entity Z$,$ whereas Investor B has decision$-$making

power concerning purchasing activity of entity Z$.$

iv$)$ Investor C possesses the authority to appoint or remove directors of entity Z$.$

Requirements:

Please identify the controlling investor $($with justifications$)$ in each of the aforementioned situations. $($Remark: If there is no controlling investor in any of these situations, justifications are still needed.$)$