Answer:
d. serious
Explanation:
Magical realism is a literary movement where stories present a fusion of the magical universes with our reality. In this way, thoughts and visions considered unrealistic or things that are not common or habitual to our routine are shown, for that reason, magical realistic stories usually express a serious and objective tone. Apart from this characteristic (which is the main one), we add elements considered "magical" simply by presenting thoughts intuitively (which are those considered without explanation).