Answer:
The second one or the one in the middle.
Explanation:
Although the weight is good. We are more focused on the Time in months.
The first graph represents that the weight on October 1 was taken when the baby was a month old. Which is inaccurate.
The second is accurate because it's says that the baby was a newborn when the weight was taken in October 1st. And after exactly 2 months he was weighted again. And another time a month and a half later.
And then the third represents that the baby was weighted every month on the same date. Which is also inaccurate.
Hope this helps you out! : )