Chlamydia trachomatis is caused by a _________ and is treated with an _________.

Chlamydia trachomatis is a bacterium responsible for the sexually transmitted infection chlamydia. It is classified as an intracellular parasite because it can only reproduce inside the cells of its host. The treatment for infections caused by Chlamydia trachomatis involves the use of antibiotics, which are effective in eliminating bacterial infections by either killing the bacteria or inhibiting their growth.

Antibiotics, such as azithromycin or doxycycline, target the bacterial cell wall or protein synthesis, making them suitable for treating this type of infection. The other choices, such as antivirals, immunoglobulins, and antifungal drugs, are not effective against bacterial infections like chlamydia, which is why they are not applicable in this case. Understanding the type of pathogen is crucial for selecting the appropriate treatment, and in this instance, recognizing that Chlamydia trachomatis is a bacterium leads to the correct treatment option being an antibiotic.