How the get the option label from a select

<select>
  <option value="1">something</option>
</select>

Forms\Components\Select::make('exchange_rate_id')
    ->relationship('exchange_rate', 'rate')
    ->searchable()
    ->preload()
    ->live()
    ->reactive()

Forms\Components\TextInput::make('exchange_rate')
    ->numeric()
    ->key('exchangeRate')