Figure shows an isotherm and two isobars of two gases on a work done versus heat  supplied curve. The initial states of both gases are the same and the scales for the two  axes are same. Which straight line corresponds to nature of gas and process then select correct statement?AHorizontal line represents isochoric processBLine coinciding with vertical gives adiabatic process CStaright line 3 represents isothermal process diatomic gas

The question seems to be incomplete as there is no figure provided. However, I can provide some general information about the processes mentioned:

A. Isochoric process: This is a thermodynamic process in which the volume of the system remains constant. The work done in an isochoric process is zero. Therefore, on a work done versus heat supplied curve, an isochoric process would be represented by a horizontal line.

B. Adiabatic process: This is a process in which no heat is transferred into or out of the system. The line representing an adiabatic process on a work done versus heat supplied curve would not coincide with the vertical axis, as this would imply that work is being done without any heat supply, which is not the case in an adiabatic process.

C. Isothermal process for a diatomic gas: This is a process in which the temperature remains constant. The line representing an isothermal process on a work done versus heat supplied curve would not necessarily be straight, as the relationship between work done and heat supplied is not linear in an isothermal process.

Without the figure, it's hard to definitively answer the question, but based on the information given, the correct statement could be A: "Horizontal line represents isochoric process".