Correct Option: A

As we can say that ,
Some politicians nowadays make fake promises in trying to make people to vote for them, so they try tactics of deceiving voters to vote for them. They make others believe that they have ‘altruistic’ (showing that you are unselfish and your actions are totally concentrated on helping others) motives. Option (a) is correct, because it means ‘motivated. The politicians make the voters believe that they are motivated by altruistic desires. Option (b) is wrong because ‘convinced’ means that you are just in agreement with something. Option (c) is wrong, because ‘categorized’ means ‘to place in categories’. Option (d) means that they are ‘guided’ by altruistic desires, but the word ‘motivate’ is more appropriate, as it shows a higher degree of effect.
The correct word is filled in the above given sentence :-
Most political leaders acquire their position by causing a large number of people to believe that these leaders are actuated by altruistic desires.