What is the MOST effective way to combine sentences 7 and 8 into one sentence?


He guessed that they might be useful in other ways as well, he asked his engineers to experiment with making products from soy. ⊝


He guessed and asked that they might be useful in other ways as well and his engineers to experiment with making products from soy. ⊝


Guessing that they might be useful in other ways as well, he asked his engineers to experiment with making products from soy. ⊝


He guessed that they might be useful in other ways as well, to ask his engineers to experiment with making products from soy