Expense has been a factor in the negative response to the development of new cements.

  • Answer: D – Felix Preston and Johanna Lehne
  • Strategies Used:
    • Step 1: Focus on the statement. The statement is about expense being a barrier to the adoption of new cement alternatives.
    • Step 2: Skim Paragraph H. Felix Preston and Johanna Lehne discuss how novel cements are not as cost-effective as traditional cement, and this has led to resistance from customers.
    • Step 3: Match with the statement. Their point about cost issues hindering the development of new cements directly matches the statement. Therefore, the answer is D – Felix Preston and Johanna Lehne.