Can someone pleaseee help me on these two questions? it's due tomorroww

The sun's parallax would be 180 degrees, greater than which you can't get.  so a. would be your anwser 

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!

The saharan africa is desert not forest

Hello there! i assume it is option e.  without carbon-14, it will be an impossible task to estimate the age of the fossil.hope this you! good luck : )  - hannah  ❤