Which statement is true about the set created by the code? Hashset set$1=$ new Hashset$<>()$; for $($Charcter letter $=\text{'}$B$\text{'}$; letter $<=\text{'}$D$\text{'}$; letter$++)\{$ set$1.$add$($letter$)$; $\}$ Groupd of choices: The set contains characters $\text{'}$B$\text{'}$ and $\text{'}$D$\text{'}$

The set contains strings $"$B$","$C$",$ and $"$D$"$ The set contains characters $\text{'}$B$\text{'},\text{'}$C$\text{'}$ and $\text{'}$D$\text{'}$

The set contain integers $66,67,$ and $68$ as Ascii codes