Which of the Following Is a Good Way to Boost

Which of the following is a good way to boost the isoflavone content of a meal?

A) Use soy sauce to marinade vegetables prior to grilling them
B) Replace olive oil with soybean oil in a salad dressing
C) Replace cubed chicken with cubed firm tofu in a stir-fry
D) Order hummus instead of edamame as an appetizer