The strong oxidizing agent has:
 (A)-the high value of reduction potential
 (B)-the high value of oxidation potential
 (C)-the low value of reduction potential
 (D)-High tendency to lose electrons

Hint: Reduction potential (also known as redox potential) measures the tendency of a chemical species to acquire electrons and get reduced. Each species has its own intrinsic reduction potential. The more the reduction potential, the greater the affinity for electrons or the more the species tends to be reduced.

Complete answer:
 An oxidizing agent is a reactant that removes electrons from other reactants during a redox reaction.
 The oxidizing agent typically takes these electrons for itself, thus gaining electrons and being reduced. Here we can say an oxidizing agent is thus an electron acceptor.
It means an oxidizing agent gets reduced for oxidizing other, by which we can say that greater the affinity towards electrons makes a species stronger oxidizing agent.
From the definition of reduction potential, we can conclude that the reduction potential more will be the affinity towards electrons, more the possibilities to get reduced.

From the above points, more the reduction potential value stronger the oxidizing agent.
Hence, the strong oxidizing agent has a high value of reduction potential.
The correct option is (A).

Additional Information: The standard reduction potential is the reduction potential of a molecule under specific, standard conditions. Standard reduction potentials can be useful in determining the directionality of a reaction. The reduction potential of a given species can be considered to be the negative of the oxidation potential.
The substances which are stronger oxidizers than ${{H}^{+}}$ ions are placed below hydrogen in the series.

Note: The negative sign of reduction potential indicates that an electrode when joined with a typical standard hydrogen electrode acts as an anode and oxidation occurs on this electrode.
To tell which is that the strongest reducer, one can change the sign of its respective reduction potential to form its oxidation potential. The bigger the amount, the stronger the reducer. For example, among Na, Cr, Cu, Na is the strongest reducer.