Muscular strength
in case you didn't know the definition of muscular strength, you could use process of elimination. it's not muscular endurance because endurance is testing how long you can do something over a period of time, and the question is asking about all at once. it's not flexibility or body composition because neither are testing how much force your body can exert. that leaves muscular strength.
Cytotechnologists examine cellular samples under a microscope to determine the presence of disease.
The answer is C) sink,cooktop,refrigerator
All sexual contact
Kissing
Skin touching
Exchanged blood or body fluids