Asteep slope on a displacement vs. time graph indicates a larger velocity

As we know that the velocity at any instant is defined as slope of displacement time graph at that instant

so we will have

now we will say

slope of the graph is also defined as

now on increasing the value of the slope we will have more steep graph

so more steep graph will have more value of theta

so for steep graph

so value of the velocity will be large at steep graph

the answer for apex is the lowest

lol

explanation: