This question refers to Section 307 of the IPC (Attempt to murder). The section provides different punishments based on the circumstances.
\[\begin{array}{rl} \bullet & \text{The general punishment for attempt to murder is imprisonment up to 10 years and a fine.} \\ \bullet & \text{If hurt is caused, the punishment can be enhanced to **imprisonment for life** or the punishment mentioned above.} \\ \bullet & \text{The second paragraph of S.307 contains a special, harsher provision: if a person already under a sentence of life imprisonment commits this offence and causes hurt, they may be punished with **death**.} \\ \end{array}\]
The question is poorly phrased ("A imprisonment, if...") but likely refers to the range of punishments available under the section. Since the court has the discretion to award imprisonment for a term, life imprisonment, or death (in the specific case of a life convict), "All of the above" represents the possible outcomes.