請問一個Wizard的問題 - TRPG

在Spell Book裡面有提到
You begin knowing two daily spells, one of which you can use on any given
day. Each time you gain a level that lets you select a daily spell or a
utility spell, choose two different daily spells or utility spells of that
level to add to your book.

舉例來說,等級一的時候可以使用一次Daily Power,所以我的Spell Book裡面
會記兩種不同的Daily Power(法術), 當然,還是只能用一次

After an extended rest, you can prepare a number of daily and utility spells
according to what you can cast per day for your level.

這邊我的疑問就是,
1) 休息之後我準備法術的時候就要決定今天要用哪一個daily power法術
還是,我可以在
2) 想用的時候再從spell book裡面挑一個daily power法術出來用

我個人覺得應該是1), 請大家幫忙解惑
謝謝.

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