Since the card is replaced after every withdrawal , no of cards in deck will remain constant. This is an independent case where one withdraw doesn't change the outcome of other.
So,
Total no of cards in deck(N)=52 No of hearts in a deck(H)=13
Supposing that the card is withdrawn randomly , the probability of getting heart in every card is,
↪P(H) =No of hearts/ Total no of cards in deck =H/N =13/52 =1/4 ➡ANSWER
▶Note: ❇Concept used here: ↪Probability of occurance =No of favourable events/Total outcome