$\quad P$ is the probability of finding the $1 s$ electron of hydrogen atom in a spherical shell of

Question

$\quad P$ is the probability of finding the $1 s$ electron of hydrogen atom in a spherical shell of infinitesimal thickness $d r$, at a distance $r$ from the nucleus. The volume of this shell is $4 \pi r^{2} d r$. The qualitative sketch of the dependence of $P$ on $r$ is

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(c) : Probability of finding $1 s$ electron is maximum near the nucleus and goes on increasing till it reaches a maximum value at a distance 52.9 pm and then begins to decrease abruptly. Even at large distance from the nucleus, there is a finite though small probability of finding an electron of a given energy.\