What present tense form of the verb ensenar would you use to speak about yourself

En varios países, hay algunas personas que, tengan acceso a servicios médicos, no podrán ir al médico what conjunction goes in the blank to trigger the subjunctive mood?

The teacher didn't explain this at all and i don't understand this

Which one of the following is the correct rhyme to keep in mind when using the spanish counterparts to this, that, those and these? a: “that” and “those” both have s’s, “this” and “these” don’t b: “that” and “those” both have t’s, “this” and “these” don’t c: “this” and “these” both have s’s, “that” and “those” don’t d: “this” and “these” both have t’s, “that” and “those” don’t