In the uk system, who or what allocates these resources?

The correct answer to this open question is the following.

In the UK system, it is the British government that allocates these resources.

We are referring to the scarce resource in the United Kingdom. It is one of the functions of the English government to regulate the producing and distribution of scarce resources to better allocate them in the market. This allows the UK government to better manage and handle scarcity issues and better respond to people's necessities.