Which one of the following has the highest number of species in nature?

According to Robert May,the total global species diversity is about:

According to Robert May's global estimates,what percentage of the total species on Earth has been discovered so far (in $\%$)?

Animals account for more than $P$ of all species recorded. Even if we combine all plant species (algae,fungi,bryophytes,gymnosperms,and angiosperms),they account for no more than $Q$ of the total percentage.

As estimated by Robert May, what is the total number of species present on Earth?

Select the correct option regarding the species diversity of animals from the following options.