What is the structure of the compound in the following 1H-NMR spectrum with the molecular formula C5H8O? The IR spectrum does show a characteristic stretch around 1700 cm-1.Relative integration is shown. 
Definitions:
Cash On Hand
Funds that a company or individual has available in cash form, not invested or deposited in financial institutions.
Zero-balance Account
A type of bank account that maintains a balance of zero by automatically transferring funds from a master account in amounts only large enough to cover checks presented.
Surplus Cash
Excess cash that a company holds over and above the minimum operational funds required, often used for investment, dividends, or buybacks.
Lockbox System
A service offered by banks to companies for the collection of payments from customers, wherein the payments are sent directly to a post office box, thereby speeding up collection times.
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