Final answer:
The most recent version of a software package is likely the one with the highest version number. The highest version number among them is d) 3.61.
Step-by-step explanation:
The most recent version of a software package would typically have the highest version number. In this case, the version numbers listed are 3.6, 3, 3.5, and 3.61. The highest version number among them is 3.61, so it is likely the most recent version.
Version numbers often follow a pattern where a higher number indicates a newer release, and decimal places can be used to signify minor updates or patches to the software.