Step 1: Understanding fumigant pesticides.
Methyl bromide and dichlorodifluoromethane (CH\(_2\)Cl\(_2\)) are common fumigant pesticides used for controlling pests on strawberries. CH\(_2\)Cl\(_2\) is often used for fumigation due to its effectiveness.
Step 2: Analyzing the options.
(A) CCl\(_2\)F\(_2\): This compound is used as a refrigerant, not a fumigant pesticide.
(B) CH\(_2\)Cl\(_2\): Correct — This is used as a fumigant pesticide for strawberries.
(C) CCl\(_3\)F: This is used as a refrigerant and is not commonly used as a fumigant pesticide.
(D) CCl\(_4\): Carbon tetrachloride is not commonly used as a fumigant pesticide.
Step 3: Conclusion.
The correct answer is (B) CH\(_2\)Cl\(_2\), as it is used as a fumigant pesticide for strawberries.