In the 1970s,Church & Dwight Developed Arm & Hammer Baking

In the 1970s,Church & Dwight developed Arm & Hammer Baking Soda Deodorants.Within 6 months,the product was very successful and another company released Arm & Hamer Deodorant to try to capture some of the market created by Church & Dwight.Can Church & Dwight prevent the maker of Arm & Hamer from selling their product?

A) Probably, because the other company's brand name is very similar to the trademark of Church & Dwight.
B) No, the other company's brand is different enough to withstand any challenge.
C) No, you cannot protect a brand name legally, only the product itself.
D) It is impossible to say using the information provided.