json desirialization

Question

{

"Amount":5000.0,

"Loan":4000.0,

"Downpayment":1000.0,

"Fee":499.0,

 

"Options":[{

"IsDefault":true,

"NumberOfMonths":10,

}]

 

}

this is json string, I need desirialize this string,how i retrive one by one value

like

Amount

Loan

Downpayment

Fee

IsDefault

NumberOfMonths

please suggest