The first week of January is the holiday of New Year, so it is appropriate to arrange the meeting in the second week.
As the first week of January is the holiday week, it is preferable to put the meeting in the second week of the month.
As the first week of January is within the New Year holiday, it is better to put the meeting in the second week of the month.
The first week of January will take a holiday beacuse of the New Year Day,so it is appropriate to arrange the meeting in the second week.