What habit has the speaker developed recently?

The correct choice indicates that the speaker has developed the habit of going to the cinema specifically on Fridays. This implies a routine that has recently been established, highlighting a specific activity and day that the speaker associates with enjoyment or entertainment.

This option is clear in establishing not just the action (going to the cinema) but also the frequency (every Friday), therefore indicating that it is a new habit. In contrast, the other options, while they suggest different activities, do not provide the same level of specificity regarding both the activity and the consistent timing. This makes the correct choice stand out as it emphasizes both the action taken and the established pattern associated with it, making it a notable recent change in the speaker's habits.