Nuclear and particle physics

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Question 4

The table below shows the quark compositions of four hadrons, $J$ , $K$ , $L$ , and $M$ .

Particle	Quark composition
$J$	$u d s$
$K$	$usˉu\bar{s}$
$L$	$dsˉd\bar{s}$
$M$	$u ss$

Which particle is a meson with a net charge of $+ 1 e$ and a strangeness of +1?

Particle $J$

Particle $K$

Particle $L$

Particle $M$