error found in a SC ques encountered during my 5th MGMAT CAT

by **tiwari.ayush03** Wed Aug 06, 2014 11:50 pm

The underlined portion in the below question and its corresponding choice-A (which needs to be the same) are not similar. (to vs who)

The new house's front door is secured by an electronic lock; a feature that not only allows residents to lock and unlock the door without physical keys, but also may prevent them from entering the house during a power outage.

a feature that not only allows residents who lock and unlock the door without physical keys, but also may prevent

a feature allowing residents without a physical key to lock or unlock the door, but also possibly preventing

a feature allows residents locking or unlocking the door without physical keys, but also possibly preventing

this feature allows residents to lock and unlock the door without a physical key, but may also prevent

this feature not only allows residents without physical keys to lock or unlock the door, but also prevents