Group 14 Elements

Step 1: Oxides of Carbon Family
The Carbon family (Group 14 elements) forms four types of oxides:
1.
CO (carbon monoxide)
2.
CO (carbon dioxide)
3.
SiO (silicon dioxide)
4.
GeO (germanium dioxide)

Step 2: Why Other Options are Incorrect
Option (a) 9 is incorrect because there are only 4 types of oxides formed by the Carbon family.

Option (c) 3 is incorrect because the correct number of oxides is 4, not 3.

Option (d) 2 is incorrect because more than two oxides are formed by the Carbon family.
Step 3: Conclusion Thus, the Carbon family forms 4 types of oxides.