An element to use to fill bottles that contain ancient paper the element to be a gas at room temperature should be denser than helium and should that not easily react with other chemicals

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon