Answer:
The correct answer would be option B, Beat my own Personal running time.
Step-by-step explanation:
An Attainable goal is the goal which a person can achieve with little or hard effort. If you set a realistic goal, which is possible to achieve in a specific period of time and you can measure the goal, then the goal is said to be Attainable.
In the given examples, Only option B is attainable. Because this is the goal which achievable. A person can beat his own running record time by doing efforts to beat it.
Other options are not realistic. A person cannot be the strongest person in the whole universe, neither he can do exercise 24 hours a day every day, nor he can run faster than anyone else in the world. All these options are unrealistic, and thus unattainable.