Final answer:
The correct form is 'hablando'. The present participle in Spanish ends in -ando or -iendo. Example: Ellos están hablando con el profesor.
Explanation:
Correct Form: Marta y tú están hablando con los políticos sobre la sequía. (hablar)
The present participle is formed in Spanish by adding -ando or -iendo to the verb stem, depending on the verb ending. In this case, 'hablando' is the correct form, derived from the verb 'hablar'.
Example: Ellos están hablando con el profesor. (They are talking to the teacher.)
Learn more about Present Participle in Spanish here:
https://brainly.com/question/32384352
