The proper pronoun for the given sentence above would be "his". The complete sentence is: Father Christmas is a character best known for his long, white beard. The pronoun "his" refers to its antecedent which is "Father Christmas" and the antecedent is a male, so a male pronoun should be used.
<span>The stereo type about doctors that emerged during the industrial and scientific revolution was that they would sacrifice anything for the pursuit of knowledge.</span>
