Question

which statement about stds is true?
they are all curable.
they are highly communicable.
they always occur with symptoms
they are spread through casual contact

Explanation:

Sexually Transmitted Diseases (STDs) are infections that are spread through sexual contact. Some STDs may not show symptoms immediately (so "They always occur with symptoms" is wrong). Not all STDs are curable (e.g., herpes is a viral STD that is not curable, so "They are all curable" is wrong). STDs are not spread through casual contact like hugging or shaking hands (so "They are spread through casual contact" is wrong). By definition, STDs are communicable (transmissible) through sexual activity.

Answer:

They are highly communicable.