The Megac Corporation has an ownership stake in the Sysinc Corporation. The Exino Corporation has an ownership stake in the Naturo Corporation. The Green Valley Corporation has an ownership stake in the Exino Corporation. The Jenyx Corporation and the Sysinc Corporation both have an ownership stake in the Green Valley Corporation. Furthermore, if Corporation A has an ownership stake in Corporation B, then Corporation A has an ownership stake in any corporation that Corporation B has an ownership stake in. But if Corporation A has an ownership stake in Corporation B, then Corporation B cannot have an ownership stake in Corporation A.
Here's the information provided by the passage, where "→" means "has an ownership stake in."
Megac → Sysinc → Green Valley → Exino → Naturo
↑
Jenyx
Assume that the information provided is accurate and that the ownership stakes listed are the only ones that have ever existed between or among the listed corporations. Select Megac for the listed corporation that Megac could acquire a first-time ownership stake in and select Jenyx for the listed corporation that Jenyx could acquire a first-time ownership stake in. Make only two selections, one in each column.
We see that since, "if Corporation A has an ownership stake in Corporation B, then Corporation A has an ownership stake in any corporation that Corporation B has an ownership stake in," the only corporation Megac does not already have a stake in is Jenyx.
For Megac, select Jenyx.
Then, since Jenyx has a stake in Green Valley, Jenyx also has a stake in Exino and Naturo. So, the only corporation among the choices that Jenyx does not have a stake in is Megac.
For Jenyx, select Megac.
Correct answer: Jenyx, Megac