Official Solution:
The Dear One Baby Carrier is marketed as the safest baby carrier currently available. It features a hard plastic shell that protects against external impacts and a thick interior cushion designed to absorb shocks. The interior has been tested with thousands of infants, and ergonomic handles are designed for ease of use by parents. A key feature, the ability to convert the carrier into a car seat, is said to reduce risks associated with moving a baby between separate carriers and car seats.
Which of the following, if true, would most seriously weaken the safety claim made about the Dear One Baby Carrier?
A. Studies show that infant injuries at home often occur even when parents are using baby carriers correctly.
B. Many parents mistakenly believe that placing a carrier in the front seat is safe, despite airbag risks.
C. A consumer group rated the Dear One Baby Carrier as one of the easiest products to travel with.
D. Some parents find the Dear One’s rigid shell makes harness fastening awkward, so they occasionally leave straps slightly loose.
E. Pediatric safety experts have found that carriers that convert into car seats often fail to meet car seat safety standards.
A. Studies show that infant injuries at home often occur even when parents are using baby carriers correctly.
Incorrect: The passage makes a claim about the safety of the Dear One Baby Carrier in particular. This option discusses general infant injury statistics, not a specific unsafe feature of this product or any of its claimed safety benefits.
B. Many parents mistakenly believe that placing a carrier in the front seat is safe, despite airbag risks.
Incorrect: The option refers to a general misuse of baby carriers by some parents. It does not weaken any specific claim made about the Dear One Baby Carrier’s design or safety features. The carrier’s safety is evaluated based on its features, not on user behavior unrelated to its construction.
C. A consumer group rated the Dear One Baby Carrier as one of the easiest products to travel with.
Incorrect: This option speaks to convenience, not safety. The manufacturer’s claims are based on physical safety features of the carrier, so an endorsement of its portability does not weaken the argument.
D. Some parents find the Dear One’s rigid shell makes harness fastening awkward, so they occasionally leave straps slightly loose.
Incorrect: Because the argument’s claim rests on the carrier’s built-in protections (shell, cushioning, car-seat conversion), a sporadic, user-dependent lapse does little to undercut the manufacturer’s assertion that the Dear One is the safest carrier available. Parents are just not using all the safety features here.
E. Pediatric safety experts have found that carriers that convert into car seats often fail to meet car seat safety standards.
Correct: This option undermines one of the key safety claims of the Dear One Baby Carrier — that its ability to convert into a car seat reduces risk. If experts say these dual-use products often do not meet safety standards, and Dear One Baby Carirer is a dual-use product, it casts doubt on the safety of this particular feature and therefore weakens the argument as a whole.
Answer: E