Final answer:
To carry out the given transformation with the indicated product as the major product, you would use Br2 in CH3OH as the reagent. The option (1) is correct.
Step-by-step explanation:
To carry out the given transformation with the indicated product as the major product, you would use Br2 in CH3OH as the reagent.
This reaction is an example of radical bromination, where the Br2 molecule is split into two Br- radicals, and one of the radicals adds to the starting material. In this case, the product would be the major product.
For example:
CH3CH=CH2 + Br2 → CH3CH(Br)CH2Br Therefore, option (1) is correct.