Smart cards are grouped into two major classes: contact cards and "contactless" cards. Contact cards have gold$-$plated contacts that connect directly with the read$/$write heads of a smart card reader when the card is inserted into the device. Contactless cards contain an embedded antenna and work when the card is waved within the magnetic field of a card reader or terminal. Contactless cards are better suited for environments where quick interaction between the card and reader is required, such as high$-$volume physical access. Smart cards can be configured to include both contact and contactless capabilities, but two separate interfaces are needed, because standards for the technologies are very different.

Which of the following can be inferred from the information in the passage?

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For most purposes, contact cards are superior to contactless cards.

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Events that disturb magnetic fields may disrupt the performance of contactless cards.

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Contact cards are more difficult to construct than contactless cards.

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Contact cards are a better choice than contactless cards for mass transit operations.

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As technology advances, contact cards will eventually be phased out.