The correct option is
A Let's discuss all the options one by one:
Option (a).
In this graph, Weight decreased with time, then it started increasing.
Hence, This best represents the given scenario.
Option (b).
In this graph, Weight always increases with time, which is not the given scenario.
Option(c).
In this graph, Weight always decreases with time, which is not the given scenario.
(d).
In this graph, Weight always increases with time, which is not the given scenario.
Hence, option (a.) is the correct one.