Answer:
a. 10 years
Explanation:
A timeline is a way to parameterize events according to the time distance between the present date and the date of the events. For example, in a timeline the current moment represents point 0. Events in the past will be represented on the left in descending order according to their chronology (hours, days, months, years, decades, etc.). On the contrary, future events will be represented on the right, in increasing cornological order. In the exercise example, the longest term is 10 years. This will be the farthest point to the right of the present instant.
The example would look like this: Present date, followed to the right by 45 days, then 26 weeks, then 11 months, and the last point would be 10 years.
