Although Drug a and Drug B Have the Same ED₅₀

Although drug A and drug B have the same ED₅₀, drug B has a wider therapeutic index (TI) ; therefore, drug A has a greater LD₅₀ than drug B.

A) Both parts of the statement are true.
B) Both parts of the statement are false.
C) The first part of the statement is true; the second part is false.
D) The first part of the statement is false; the second part is true.