Final answer:
The given information relates to the deflection of a charged particle in a magnetic field. Without specific details on particle X's behavior in a magnetic field, it is impossible to confidently select the best option from the ones provided, as we would need to know the direction of deflection to determine its charge. The, correct answer is B.
Step-by-step explanation:
The statements provided are attempting to characterize a particle labeled with an 'x'. It's important to know that a magnetic field is associated with a moving charged particle, such as an electron. Electrons are negatively charged particles that orbit the nucleus in an atom. A particle in a magnetic field can be deflected in a manner that indicates its charge; upon entering a magnetic field, if a particle is deflected to the north and the magnetic field is directed from east to west, it indicates that the particle has a positive charge.
Given this, if particle X is being defined in the context of being deflected in a magnetic field, it could help identify if it is positively or negatively charged depending on the direction of deflection. If X is deflected as described, then answer B would be correct. However, since not enough information is provided about the specific behavior of particle X in the context of magnetic fields or other identifying factors, it is not possible to confidently determine its properties amongst the options given.