Does the sentence "In the mid-1950s, Frank Burnet, inspired by a suggestion made by Niels Jerne, formulated the clonal selection theory (CST) of immunity." provide a valid answer to the question "When was clonal selection theory first proposed?"

A: yes

Does the sentence "The Croton Watershed north of the city is undergoing construction of a US$3.2 billion water purification plant to augment New York City's water supply by an estimated 290 million gallons daily, representing a greater than 20% addition to the city's current availability of water." provide a valid answer to the question "In what geographical direction would a New Yorker travel to reach the Croton Watershed?"

A: yes

Does the sentence "The last glacial period of the current ice age ended about 10,000 years ago." provide a valid answer to the question "How long ago did the last glacial period end?"

A: yes

Does the sentence "The state is divided into 77 counties that govern locally, each headed by a three-member council of elected commissioners, a tax assessor, clerk, court clerk, treasurer, and sheriff." provide a valid answer to the question "Who can collect taxes in Oklahoma?"

A:
no