Let's analyze the options:
\begin{itemize}
\item[(A)] Sweat equity shares: Issued to directors or employees for their contribution other than cash.
\item[(B)] Incorporation cost: Expenses incurred in forming a company. Not an offer of securities.
\item[(C)] Private placement of shares: An offer of securities made to a select group of persons (identified by the Board, maximum 200 in a financial year excluding QIBs and employees under ESOP), not involving a public offer. This matches the definition given in the question. [Section 42 of the Companies Act, 2013]
\item[(D)] Employee stock option plan (ESOP): Offer of shares to employees of the company. While it's to a select group (employees), private placement is the broader, more accurate term for any offer to a select group other than a public offer.
\end{itemize}
Therefore, the correct answer is Private placement of shares.