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<span>"b. avoided when writing". It could be D, but they can't always be combined this way, so it is best to avoid them.
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Answer:
Explanation:
Sport psychologists can also help athletes: Enhance performance. Various mental strategies, such as visualization, self-talk and relaxation techniques, can help athletes overcome obstacles and achieve their full potential. Cope with the pressures of competition.
B.On the hike, Mr. Clark tripped over a tree root, fell to the ground, and broke his wrist.
Parallel structure is using the same grammatical structure for a list of items or ideas. In option B, all of the actions in the list are written in simple past tense. They do not include a helping verb or other form. The verbs are all the same structure: tripped, fell, broke.
Option A is not correct. To make it correct parallel structure, "being responsible" should be "responsibility". To correct the parallel structure for Option C, "babysitting" should be "to babysit". To fix option D, add "having" before fierce determination.