Correct Answer: B

Rationale: Medial means toward the midline of the body. In anatomical terms, 'medial' refers to positions closer to the midline of the body, which divides the body into left and right halves. Choice A is incorrect as it describes 'lateral,' which means away from the midline. Choice C is incorrect as it describes 'lateral' or 'side.' Choice D is incorrect as it describes 'inferior,' which means below or lower in position.

Correct Answer: B

Rationale: The correct answer is B: 'To begin or put into practice.' 'Initiate' means to start or commence something. Choice A, 'To finish,' is incorrect because 'Initiate' refers to the beginning of something, not its conclusion. Choice C, 'To delay,' is incorrect as it is the opposite of what 'Initiate' means. Choice D, 'To stop completely,' is also incorrect as it is the opposite of starting or initiating something.

Correct Answer: D

Rationale: The US imports most of its silicone chips from Japan and China, indicating that the silicone chips are being brought into the US from these countries. 'Imports' refers to the act of bringing goods or services into one country from another, which accurately describes the scenario described in the question. The other choices are incorrect: 'Deports' means expelling individuals from a country, 'Exports' mean sending goods to another country, and 'Reports' mean providing information or data.

Correct Answer: B

Rationale: In this sentence, the correct option is 'had run' as it is the past perfect tense, which is used to indicate an action completed before another past action. The sentence structure requires the past perfect form to show that the running occurred before catching up with the man. 'Ran' (choice A) is in simple past tense and does not convey the sequence of events correctly. 'Chased' (choice C) is the simple past tense of the verb 'chase' and does not align with the past perfect tense needed in the sentence. 'Drove' (choice D) is incorrect as it refers to using a vehicle to pursue someone, whereas the context of the sentence indicates running on foot.

Correct Answer: B

Rationale: The correct answer is B: 'Straightforward.' Guileless means innocent, sincere, and without deceit. It describes someone who is honest and straightforward in their actions and speech. Choices A, C, and D are incorrect. 'Deceptive' means misleading or dishonest, 'Complex' means having many intricate parts, and 'Untrustworthy' means not reliable or trustworthy, all of which are opposite in meaning to guileless.