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At what distance the object should be placed, when convex lens is used as simple magnifying glass?

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At what distance the object should be placed, when convex lens is used as simple magnifying glass?

(a) Less than one focal length

(b) Less than twice the focal length

(c) More than one focal length

(d) More than twice the focal length

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I'm obligated to ask this question of Lenses topic in chapter Optics of Engineering Physics II

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Right answer is (a) Less than one focal length

To elaborate: A converging lens bends the light away from the object, making it appear larger when held close to an object. The object must be placed between the lens and the focal point (F) of the lens, to view an upright, enlarged image as shown below:

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