Question 1: Single choice
mediumAI-checkedGenerative Adversarial NetworksA GAN is trained with these helpers, where real_loss compares the discriminator's outputs
with label 1 and fake_loss with label 0:
fake_images = G(z)
D_fake = D(fake_images)
g_loss = ???(D_fake)
g_loss.backward(); g_optimizer.step()
Which call belongs in place of ??? for the generator step?