This was a choice between four options. The rewards for C and D were relatively safe choices. Su Xiao had obtained the Power of a Grandmaster before, and he had a certain conjecture about it. As for option D, Su Xiao had seen it in the Trading Market before.
The so-called Forced Departure Exemption Book could be used to immediately leave the Derivative World one was in and return to Reincarnation Paradise. The Main Quest would carry no punishment or reward. In exchange, all benefits obtained in that Derivative World would be forcibly deducted, such as Treasure Chests and Paradise Coins.
Su Xiao did not urgently need this item. He still had one unused Main Quest Failure Exemption.
As for reward A, Su Xiao eliminated it outright. Who knew what the hell it was? If eating it turned him into something like Maha, it would be a terrible loss.
Was immortality really a good thing? At least to Su Xiao, immortality was not particularly alluring. Exploring an infinitely vast world within a finite life—that was the most interesting thing.
There was no need to worry about one's lifespan while adventuring in Reincarnation Paradise. Rather than fretting over how long one would live, it was better to consider how long one could survive in Reincarnation Paradise. As long as he continued to survive, his constitution would keep growing stronger, and there would be no need to worry about his lifespan.
With that in mind, Su Xiao was left with only rewards B and C.
The name Space-Time Coin sounded extremely impressive, and items related to space-time were definitely not lacking in utility.
Should he play it safe and choose the Power of a Grandmaster Scroll (1/10), or take a risk and choose the Space-Time Coin? This was a somewhat difficult choice.