Task D1, (Part 3): Understanding vocabulary in context

In Part 3, the speaker says, 'Their parents are often illiterate'. 'Illiterate' probably means:
1. very poor
2. poorly educated
3. unemployed
4. cannot read or write
In Part 3, the speaker says, 'they'll take an English class, and learn really rudimentary things'. 'Rudimentary' probably means:
1. challenging
2. new
3. basic
4. practical
In Part 3, the speaker says, 'So, if you really want to help these workers, start these small, very focused, very pragmatic classes'. 'Pragmatic' probably means:
1. new
2. practical
3. basic
4. challenging
In Part 3, the speaker says, '...help their social mobility'. 'Social mobility' probably means:
1. freedom to move
2. movement from villages to cities
3. movement between societies
4. movement in social standing
In Part 3, the speaker says, '...the trajectory is definitely upward'. 'Trajectory' probably means:
1. a road
2. a line
3. movement
4. a force