Recognize computational thinking

A facilities team is studying the bicycle parking area from the worked example. A student completes each activity below.

1. Reads the number shown on the parking area’s occupancy display.
2. Records bicycle arrivals in equal time periods and compares the periods across several teaching days.
3. Copies a table from another building without checking what its columns mean.
4. Decides which observations the facilities team needs before proposing a change to the parking area.

Which 2 activities show the clearest evidence of computational thinking?

A. 1 and 2
B. 1 and 3
C. 2 and 4
D. 3 and 4

Explain your choice in 1 or 2 sentences.