Which of the following actions would a president take if he wanted a bill to pass but didn't wanna have a signing ceremony

a)the president would ask not to have a signing ceremony within 10 days of signing the bill
b) the president would sign the bill during a joint session of congress
c) the president would take no action on the bill and allow it to become law by not acting on it in 10 days*answer
d)the president would veto the bill

Ineed because i cannot find the answers anywhere

Aresearcher proposes to conduct a study at a foreign site. the research has been determined to be exempt from the federal regulations by institutional policy. according to federal regulations, is review required at the foreign site? if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted but still require review at the u. s. site by the institution’s irb. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted, but still require review by the institutional official at the local site.

The principle that the geoglical processes that we see today have occurred through out earths history is called