The individual that Dante does not encounter in Limbo is D) Abraham.
In<em> Inferno</em>, Dante shares a conversation with Virgil, who tells him that<u> he saw Jesus descend into Limbo in order to transport Abraham and other important figures such as Adan and Moses and save their souls</u>. For that reason, Dante does not encounter Abraham in Limbo. However, <u>he finds Ovid within the group of the great poets and he encounters Heraclitus</u>, who is part of the group of philosophers, in Limbo. <u>Moreover, Dante also sees Avicenna, a Persian polymath, during his journey. </u>