Final answer:
To make a shape enter gradually, one should ideally choose 'Fade In', but given the options, 'Fade Out' is the closest match assuming reverse play is available, otherwise 'Fly In' at a slow speed could suffice.
Step-by-step explanation:
If you want to make a selected shape enter gradually in a presentation or animation, you should choose the Fade In option. However, since 'Fade In' is not listed among the choices given and the closest option to a gradual entry is a gradual appearance, the correct answer is A) Fade Out. Although 'Fade Out' typically refers to an object disappearing, some software allows for reverse playback of animations, meaning that 'Fade Out' can become 'Fade In'. If that is not the case, the available options do not directly describe a shape entering gradually, but Fly In could serve as a secondary option, provided you can set it to a slow speed. However, 'Fade Out' would generally be the answer provided reverse play is possible.