The Difference Between Address.send() and Address.transfer() Is

question 41

Multiple Choice

The difference between address.send() and address.transfer() is:

• A) .send returns a Boolean and .transfer throws an exception on error. Both just forward the gasstipend of 2300 gas and are considered safe against re-entrancy.
• B) .send throws an exception and .transfer returns a Boolean on error. Both just forward the gasstipend of 2300 gas and considered safe against re-entrancy
• C) .send returns a Boolean and .transfer throws an exception on error. .send is considered dangerous, because it sends all gas along, while .transfer only sends the gas stipend of 2300 gas along
• D) .send and .transfer are both considered low-level functions which are dangerous, because they send all gas along. It's better to use address.call.value()() to control the gas-amount.

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Definitions:

Neutral Atoms

Atoms with an equal number of protons and electrons, resulting in no overall electric charge.

Uranium-235

An isotope of uranium making up about 0.7% of natural uranium, significant for its ability to undergo fission and its use in nuclear reactors and weapons.

Neutrons

Subatomic particles present in the nucleus of an atom, carrying no electrical charge and having a mass slightly larger than that of protons.

Uranium

A heavy, silvery-white metallic element, radioactive and used as fuel in nuclear reactors and weapons.