Answer:
The correct answer is reflexive.
Explanation:
There are actually two pronouns in the sentence (you didn't italicize either one, unfortunately): I and myself. I is a personal pronoun, like you, he/she/it, we, you, and they.
On the other hand, the pronoun myself is reflexive. This means that the object of the sentence is the same as the subject. In the sentence above, the subject I is performing the action respect on the object myself who is the same person as the object.
Relative pronouns connect sentences: who, which, whom, etc. Interrogative pronouns are used in questions: which, who, etc. (but not to connect clauses). Demonstrative pronouns point to something: that, this, those, etc. For indefinite pronouns, we don't know who or what we're talking about: somebody, whoever, whichever, etc. Intensive pronouns looks the same as reflexive, however, they are only used for emphasis and can be omitted from the sentence without it losing its meaning.
