If $H+I$ means $H$ is the sister of $I$; $H-I$ means $H$ is the brother of $I$ and $H\times I$ means $H$ is the mother of $I$, which of the following means that $J$ is the daughter of $P$?

We need to find the expression which implies $J$ is the daughter of $P$. This means $P$ must be a parent (mother or father) of $J$, and $J$ must be female.
Let's test the expressions:

*Option C: $P-Q\times J+M$ **
* $P-Q⟹P$ is the brother of $Q$ (Male).
* $Q\times J⟹Q$ is the mother of $J$. Therefore, $P$ is the maternal uncle of $J$. This does not mean $J$ is the daughter of $P$.

*Option D: $P\times Q-J+M$ **
* $P\times Q⟹P$ is the mother of $Q$ (Female).
* $Q-J⟹Q$ is the brother of $J$ (Male). Since $P$ is the mother of $Q$, $P$ is also the mother of $J$.
* $J+M⟹J$ is the sister of $M$ (Female).
* Since $P$ is the mother of $J$ and $J$ is a female, $J$ is indeed the daughter of $P$.

Let's verify why option D is correct and matches the required relation perfectly.