he data blocks in your form module are based on object tables. How would you create a master-detail relationship between two of these blocks?（）
A. Use the Data Block Wizard and base the relation on a REF pointer.
B. In the Object Navigator, select the Relation node under the master block and click the Create icon. Build the relation manually and coordinate the blocks using triggers.
C. Use the Data Block Wizard, and base the relation on the primary key-foreign key relationship in the database.
D. This task is not possible because master-detail relations can be implemented only for blocks based on relational tables.&e
九年级（1）班的部分同学利用双休日在中华广场举办了“践行八荣八耻，做文明人”的公益宣传活动。你们以自己的实际行动关爱着社会的做法表明（）
A. 作为公民，应共同营造“人人为我”的社会氛围
B. 团结就能办大事
C. 关心别人是我们每个人义不容辞的责任
D. 热心公益，关爱社会
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