阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A
[2022·福建省高三诊断性练习]
Geocaching
This expensive but very cool GPS app makes it possible for the whole family to go geocaching, a hightech treasure hunt game. This app makes it unnecessary to buy a dedicated GPS device. The app taps directly into a database with more than 2 million locations, some within walking distance, and gives you everything you need to find treasures hidden by other enthusiasts.
SkySafari
SkySafari is a powerful mobile planetarium (天象馆) that uses GPS location to view the night sky. The app comes in multiple versions. The databases, even on the entrylevel versions, are large, requiring up to 940 MB of free space depending on the platform. You can learn about astronomy by viewing planets and stars, searching for specific objects of interest or looking at astronomical sightings in that night's sky.
Historypin
Historypin is a great tool to bring families together to share stories. You can learn about the history of any area by searching Historypin's world map by a place, time, or subject. Because there are a few different ways to use Historypin's bank of usercontributed knowledge, as well as ways to add contents, you can learn how to access and create digital contents. That means sharing with the general public.
GarageBand
GarageBand is a powerful digital music workstation and multitrack recorder. You can create songs in a number of ways, all in an interesting interface. An added bonus is the great editing tool that tightens up any musical performance. You can share your GarageBand songs through social media, email, or text. The app is designed to give everyone an amazing musical experience—and it delivers.
1．What is special about Geocaching?
A．It needs an extra GPS device.
B．It helps to collect data.
C．It can locate hidden treasures.
D．It is a platform for developing games.
2．Which app is suitable for an astronomy lover?
A．Geocaching. B．SkySafari.
C．Historypin. D．GarageBand.
3．Both Historypin and GarageBand have the function for users to ________．
A．get families involved
B．enjoy musical performances
C．search world maps
D．share what they create
