**Core Concept**
Conventional contraceptives refer to methods that rely on physical barriers, hormonal interventions, or other non-hormonal mechanisms to prevent fertilization or implantation of the ovum. These methods are often contrasted with modern or advanced contraceptives that utilize more sophisticated technologies.

**Why the Correct Answer is Right**
Conventional contraceptives include barrier methods such as condoms, diaphragms, and cervical caps, which physically prevent sperm from reaching the egg. Hormonal methods like the pill, patch, and intrauterine devices (IUDs) work by altering the body's hormonal environment to prevent ovulation or thicken cervical mucus, making it difficult for sperm to penetrate.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not accurately describe conventional contraceptives.
**Option B:** This option is incorrect because it is too broad and includes modern contraceptives such as implants and injectables.
**Option C:** This option is incorrect as it only refers to a subset of conventional contraceptives, specifically hormonal methods.

**Clinical Pearl / High-Yield Fact**
It's essential to note that while conventional contraceptives are effective, they may not be as reliable as modern contraceptives like implants or injectables, which can provide longer-term protection against pregnancy.

**Correct Answer: B. Hormonal methods like the pill, patch, and intrauterine devices (IUDs) work by altering the body's hormonal environment to prevent ovulation or thicken cervical mucus, making it difficult for sperm to penetrate.**