OptionExtensions.cs

public static Option<TException> WithoutValue<TValue, TException>(this Option<TValue, TException> option)
{
    return option.Match(_ => Option.None<TException>(), exception => exception.Some());
}

public static IEnumerable<TValue> Values<TValue, TException>(this IEnumerable<Option<TValue, TException>> source)
{
    if (source == null) throw new ArgumentNullException(nameof(source));
    return source.SelectMany(option => option.ToEnumerable());
}

public static IEnumerable<TException> Exceptions<TValue, TException>(this IEnumerable<Option<TValue, TException>> source)
{
    if (source == null) throw new ArgumentNullException(nameof(source));
    return source.SelectMany(option => option.WithoutValue().ToEnumerable());
}